Multiple people are believed to have been knifed in a mass stabbing in a public park in Reading this evening.
Extremely graphic video on social media showing at least four people on the floor as they are helped by witnesses and police, with additional officers rushing to help amid screaming.
The footage shows a chaotic scene with people covered in blood and appearing not to move as they lay in the grass in Forbury Gardens in Reading, Berkshire.
Witnesses and police can be seen performing CPR on the possible stabbing victims. Blood is visible on the floor in the video which was captured by a witness.
Royal Berkshire NHS Foundation Trust confirmed two people were being treated for injuries at the Royal Berkshire Hospital A&E department.
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There was a huge police presence and at least two air ambulances landed near the scene. Witnesses also reported seeing a police helicopter circling above the park.
Home Secretary Priti Patel said she was "deeply concerned" following the reports.
Police so far have not confirmed any details about the incident, including what happened or the number of victims, other than to say an investigation was underway.
The force did not say if anyone was in custody or being sought.
A spokesperson for Thames Valley Police tweeted: "We are aware of reports of an incident in Forbury Gardens, Reading.
"Officers are on the scene and investigating the incident."
A witness, who asked not to be named, told Mirror Online she saw the emergency services performing CPR on at least three people as police rushed to the scene and helicopters soon circled overhead.
She said: "My husband and I were walking back from Tesco after a grocery run, we always walk there.
"We take a break halfway at Forbury Gardens. I sat with my bags, drank water. I heard some children scream and cry, and assumed they were cranky.
"I was pointing to a mound and told my husband it would be perfect for a picnic spot. That's when I heard sirens.
"We saw emergency services perform CPR. We rushed outside the gardens and continued walking onto Friar Street."
The woman said she was terrified by what she witnessed and was feeling "very shaken" back at home.
Police sealed off a large area around the scene and local councillors urged people to stay away after the incident was reported around 7.30pm.
Several roads around the park were closed and a number of businesses were forced to close, BerkshireLive reported.
Freelance journalist Claire Gould, 33, who lives near the scene, said she saw the emergency air ambulance vehicles land on the nearby Kings Meadow as a police helicopter circled overhead.
She described hearing lots of sirens and said surrounding roads and a retail park had been cordoned off by officers.
Ms Patel, the Home Secretary, tweeted: "Deeply concerned to hear reports of an incident in Reading.
"My thoughts are with everyone involved, including police and emergency responders at the scene."
Labour deputy leader Angela Rayner was among those asking people not to share graphic video of the incident on social media.
She wrote on Twitter: "There appears to be a serious incident tonight in Reading with reports of multiple stabbings.
"Can people please stop sharing videos in the media of the alleged incident, it is incredibly upsetting for both the victims and their families. Let our emergency services respond now"
Councillor Jason Brock, leader of Reading Council, tweeted: "Concerning reports from Reading town centre - please stay clear of the area as Police are dealing with a serious incident.
"@ReadingCouncil are in touch with the emergency services and will support them as necessary."
Councillor Adele Barnett-Ward added: "Very concerning news coming in about a serious incident in Forbury Gardens.
"Please keep away from the area so emergency services can do their jobs. My thoughts are with everyone affected."
Following the incident, one witness tweeted: "Not looking good down here folks so best avoid round by The Forbury and let the emergency services do their thing. We are lucky to have them."
Another person wrote: "Absolutely crazy. A mate was there and saw it all unfold, said it was absolutely shocking."
A spokesman for Thames Valley Air Ambulance told the Telegraph: "Our guys are down there, we do have a number of resources down there assisting, working alongside South Central Ambulance Service and the police.
"We've got a number of patients that are being cared for and treated at the moment, but that is about as much information as I have at the moment.
"All I know is there are a number of patients down there and we are assisting as part of a large response."
A Black Lives Matter (BLM) protest was held at the bandstand in the park earlier on Saturday. It had ended before the incident and no-one from the protest was involved, an organiser said.
Responding to speculation on Twitter and messages from concerned friends, Nieema Hassan, an organiser of the BLM demonstration, posted a video on Facebook saying: "It had nothing to do with the protest. They were very peaceful."
She said the protesters had left before the incident happened, writing: "Everyone who attended today in support of BLM RDG are all of okay."
