The death of a 10-year-old girl caught in a mudslide while on a school trip has been ruled an accident by an inquest jury.

Leah Harrison, a Year 6 pupil at Mount Pleasant Primary School in Darlington, died in May last year during a residential trip to Carlton Adventure in Carlton-in-Cleveland, on the edge of the North York Moors National Park.

In a written statement, Leah's mother Michelle Harrison said her daughter was a "happy-go-lucky person with a gorgeous, infectious smile".

The jury at Teesside Coroners Court concluded Leah's death was accidental and she was "swept off her feet" by the mudslide which left her unable to breathe.

Ms Harrison said although Leah had recently been poorly with tonsillitis she was looking forward to the trip to the adventure centre.

She said she was "proud as punch" to be on the trip.

Activities co-ordinator Paul Godwin told the inquest the mudslide which killed Leah "could not have been predicted and could not have been avoided".

He said the risk was "totally unforeseen" and would not have been included in a risk assessment because there was "no prior indication" of such an event.

Mr Godwin had been supervising another activity at the centre when he was informed of what had happened.

In a statement read to the inquest jury, Home Office pathologist Dr Jennifer Bolton said Leah died from "traumatic asphyxia", but had "no natural disease".

A two-month investigation by the Health and Safety Executive (HSE) concluded last December that no-one was at fault.

Headteacher Joanne Blackham, who was on the activity trip, said Leah had "really impressed her in the activities" and "pushed herself out of her comfort zone".

When reading a statement she had previously made to the police, she became emotional as she described the mud slide being like a "lava flow".

With mud up to her chest, Ms Blackham tried to pull Leah out by her legs but "there was no movement".

The mudslide at the Hartlepool Borough Council-owned site happened while a Met Office yellow weather warning for heavy rain was in place.

Ms Blackham said she had had no concerns previously about the weather conditions, describing it as "just a rainy day".

"It literally just came out of nowhere, you could hear the roaring and rushing of water and muck.

"It just swept her away, it just took her."

After the inquest, Nick Blackburn, chief executive of Lingfield Education Trust, which runs the school, said: "Almost a year has passed since this heartbreaking tragedy, and our primary thoughts today remain with the family and loved ones of Leah, who are having to cope with an unimaginable loss.

"We continue to be there for them and to remember Leah as a special part of our school community."

Donnelly said a brick was thrown through a window of the leisure centre in Larne where a yoga class was being held and members had to flee for safety.

"Thankfully, nobody was hurt but as you can imagine there was glass everywhere and the women had to get up and leave," he said.

Donnelly said it quickly became violent and the windows of the leisure centre were "systematically being put in".

He added that paint was thrown over fire doors and described it as a "sustained attack" on the building.

"They were already throwing bricks at the police as well," he said.

He said staff had to flee through the back door for their own safety.

Donnelly told BBC Radio Ulster's Good Morning Ulster programme that people and children became "fearful" and staff helped customers "to leave via the side doors and get to their cars safely".

"It became more and more sinister, and it became more and more obvious that there was a malicious intent. You don't come to a peaceful protest with a mask and bricks."

Olympic swimmer trained at centre

Olympic swimmer Danielle Hill, who trained at the leisure centre, described the attack as not just violence, but that "it was racism in its rawest and most dangerous form".

In a Facebook post, she said Wednesday night's events "are already being felt".

"No child should ever have had to witness the sight of individuals in Balaclavas.

"A local community torn apart. Families left frightened. Workers, left without incomes. The harm is not abstract – it is here, it is local, and it is devastating," she said.

Analysis: Bad timing for crisis-hit PSNI

by Julian O'Neill, BBC News NI crime and justice correspondent

The disorder comes at a time of crisis for the Police Service of Northern Ireland (PSNI).

Its chief constable, Jon Boutcher, has issued repeated warnings about it being "critically underfunded", leaving it with the lowest number of officers in its history.

It currently has 6,200 officers – compared to more than 9,000 when it was established in 2001, and various official reports have recommended it should have at least 7,500 officers.

There have been many political commitments to achieving this, but it has not been acted upon given the constant pressures on public spending.

To make matters worse, around 1,500 officers are either on sickness absence or restricted duties away from frontline policing.

You can read more analysis here.

'Dramatic footage' of disorder

DUP councillor Andrew Clark said he first saw "dramatic" footage of the disorder on social media.

"It seemed that youths had broken in and the foyer of it was quite heavily on fire, quite a lot of smoke," he told BBC News NI.

"After a period of time the police arrived, security arrived and then fire engines arrived and were able to bring it under control fairly quickly and then remained on the scene."

Clark estimated that there were fewer than a dozen hooded youths involved in the arson and several hundred people observing.

"The mood was one of shock of the stupidity, burning your own leisure centre down, anger at the wickedness of it, attacking a building used by everyone," he said.

"I would say also there's some people dismayed because there's very legitimate conversations to be had around the issues of housing and immigration and that's totally been taken off the agenda through this wickedness."

"It is very concerning, the message is very clear, it has to stop, you are doing no good whatsoever," he added.

What else happened on Wednesday night?

The PSNI said more officers were injured and six further arrests were made during the third consecutive night of disorder.

Ballymena

Officers were attacked with petrol bombs, heavy masonry, bricks, fireworks and a hatchet.

Nine officers were injured but remained on duty.

Two men aged in their 20s and one in their 30s, along with two teenagers were arrested on suspicion of riotous behaviour and other offences.

A number of baton rounds were discharged and water cannon was deployed.

One man, aged 18, and two teenage boys, aged 15 and 17, have been charged with riot after Tuesday's disorder. The 15-year-old has also been charged with criminal damage.

They are expected to appear before Ballymena Magistrates Court on Thursday.

Two other teenage boys who were arrested during the disorder have been released on bail.

Newtownabbey

A teenager was arrested in connection with disorder in the Station Road area.

Coleraine

A bus was attacked and was prevented from entering the station.

Bins were set alight on the train tracks at the station and petrol bombs were thrown at officers, resulting in train and bus services being cancelled.

The police are investigating a fire at nearby business premises and a subsequent report that a number of young people broke into a tyre business and added tyres to fire.

Carrickfergus, Antrim, Lisburn and Belfast

Masked protesters blocked roads on the Marine Highway area in Carrickfergus.

Protests passed without incident in the Antrim and Lisburn areas.

A number of protests also took place across Belfast, and police described them as "mainly peaceful".

Criticism of Stormont minister

Donnelly was among a number of elected representatives criticising a Stormont minister over a social media post about the location of migrant families who left their homes hours before the centre was attacked.

Communities Minister Gordon Lyons of the Democratic Unionist Party (DUP) said that people caught up in clashes in Ballymena were being temporarily moved to Larne Leisure Centre.

Sinn Féin Finance Minister John O'Dowd claimed Lyons "failed to show leadership".

Donnelly said: "I thought it was incredibly reckless and dangerous to highlight the location of where these people were being kept and brought to a place of safety."

"If I was the minister, I would certainly be considering my position," he added.

Lyons has defended his comments saying the information was in the public domain, and had been confirmed by the local council.

DUP leader Gavin Robinson said Lyons has been "fundamentally misrepresented" and said it is "a disgrace and a distraction at a time whenever what we need is collective political leadership".

Meanwhile in County Armagh, a housing association has warned its residents to leave their homes and take measures to protect their properties ahead of a planned protest.