Dan Hunt
BBC News, Leicester

Thank you for joining us - our live coverage has now ended.

Assistant Chief Constable James Avery confirmed a 76-year-old had been arrested on suspicion of administering poison or a noxious substance.

Leicestershire Police said an investigation was under way after eight children at the camp at Stathern Lodge were taken to hospital on Sunday. All have since been discharged.

The police watchdog, the Independent Office for Police Conduct (IOPC), said it was investigating Leicestershire Police's handling of the incident.

You can keep up with the story here.

Dan Hunt
BBC News, Leicester

Elvas Madanombe, from the Friday Apostles church in Sheffield, which has regularly visited Stathern Lodge in the past, described the news as "horrific".

He added it was "unimaginable" and said the group would have to re-evaluate visiting the lodge next week.

ACC Avery now takes questions from the media.

The first, from the BBC, asks what substance the children came into contact with.

He replied that, other than the fact that they came down with symptoms of feeling unwell, the police can't elaborate further for now.

He also refused to comment on the ages or gender of the children involved.

ACC Avery then confirmed the IOPC had been referred to, in order to review how the police acted initially.

He finished by reiterating that the care and ongoing welfare of the children involved is of the utmost importance.

Dan Hunt
BBC News, Leicester

Assistant Chief Constable James Avery said the investigation was now being led by the East Midlands Special Operations Unit's major incident team.

He added this was to allow a "full and thorough investigation" to take place with dedicated resources.

A dedicated major incident public portal has been created and he asked anyone with any information in relation to the investigation to report it online.

Matt Taylor
BBC News, East Midlands

Assistant Chief Constable James Avery confirmed a 76-year-old had been arrested on suspicion of administering poison or a noxious substance.

"He remains in custody at this time," he added.

Assistant Chief Constable James Avery takes to the podium and the press conference begins.

He starts by setting out some of the facts of the events that took place on Sunday 27 July.

He describes how a report was received that concerned children feeling unwell at a summer camp.

Officers were deployed as well as the ambulance service, he said.

He said eight children were taken to hospital as a precaution, but all had now been discharged.

The news conference on this weekend's events in Leicestershire is just about to get under way in Stathern.

We'll be hearing from Leicestershire Police representative Assistant Chief Constable James Avery - you can watch his remarks live at the top of the page.

Dan Hunt
BBC News, Leicester

Ed Argar, Conservative MP for Melton and Syston, said the reports were "clearly shocking" and "deeply concerning".

"Our thoughts are with the young people affected - wishing them a full recovery," he added.

"While, understandably, people will have a lot of questions about what has happened, it is important we remember this is a live police criminal investigation, so I would caution against people speculating while the police do that work.

"I would, however, encourage the police to provide as much information publicly as they can, as soon as they can, but without prejudicing that vital investigation."

Matt Taylor
BBC News, East Midlands

The Independent Office for Police Conduct (IOPC) said it was investigating Leicestershire Police's handling of the incident.

A statement released earlier said: "We received a conduct referral on Tuesday from Leicestershire Police relating to their handling of concerns passed to them over the wellbeing of a group of children.

"Our assessment team has examined all available evidence and concluded the matter should be independently investigated by the IOPC.

"The investigation will look at whether there were any breaches of professional behaviour – namely a failure to carry out duties and responsibilities – that resulted in a delay in Leicestershire Police’s response to what was later declared a critical incident."

Police said once emergency services had arrived at the scene, a triage centre was set up at Plungar Village Hall to assess all children present at the camp.

Following an initial assessment, eight children were taken to hospital as a precaution and all have since returned home.

The force said the investigation was now being led by the East Midlands Special Operations Unit's major incident team.

Officers remained in Stathern on Thursday, carrying out further inquiries and providing reassurance to families affected.

The force said due to the circumstances of the initial police response, it had referred itself to the Independent Office for Police Conduct (IOPC).

Det Insp Neil Holden, the senior investigating officer, said: "We understand the concern this incident will have caused to parents, guardians and the surrounding community.

"We are in contact with the parents and guardians of all children concerned.

"Please be reassured that we have several dedicated resources deployed and are working with partner agencies including children's services to ensure full safeguarding is provided to the children involved.

"This is a complex and sensitive investigation and we will continue to provide updates to both parents and guardians and the public as and when we can."

Dan Hunt
BBC News, Leicester

A 76-year-old man has been arrested on suspicion of administering poison after children fell ill at a summer camp in Leicestershire.

Police said an investigation was under way after eight children at the camp at Stathern Lodge were taken to hospital on Sunday. All have since been discharged.

Officers had gone to the camp, in Canal Lane, with East Midlands Ambulance Service after receiving reports of children feeling unwell.

Isaac Ashe
BBC News, Stathern

Canal Lane in Stathern is heaving with media assembled in the July sunshine at the outer cordon - there are more members of the press here than police officers at present.

At the far end of the cul-de-sac lane, a police investigation has arrived at the lodge.

Aside from a nearby hospice charity shop and coffee spot, which has locked up for the day, there is not a lot else but fields and trees here to see.

Dan Hunt
BBC News, East Midlands

Hello, welcome to our live page as we bring you updates from Stathern in Leicestershire after a 76-year-old man was arrested on suspicion of administering poison after children fell ill at a summer camp.

We will bring you the latest updates as Assistant Chief Constable James Avery addresses the media at 15:30 BST at Stathern Lodge.