Wiltshire’s top police officer said he was shocked by the death in US police custody of George Floyd.

The American man’s death has led to widespread protests in cities across the US. Thousands of people descended on the streets of London on Wednesday. Mr Floyd died on May 25, after a white police officer who was arresting him kept his knee on the suspect’s neck. The incident was captured on mobile phone film.

Asked for his reaction to the death of Mr Floyd, Chief Constable Kier Pritchard said: “It’s a horrific image and shocking for anybody to watch.

“I was horrified and appalled that George Floyd would lose his life in that way so very publicly and tragically. It really shocked me, if I’m honest.”

He said he hoped those responsible would be held to account. The senior police officer added: “I am also shocked by the level of violence and criminality that then followed. There has been more loss of life, looting and violence and I fully understand the depth of feeling would be very strong and extreme but that doesn’t justify further high level criminality, murder and such a degree of rioting.”

A solidarity protest in planned to take place in Swindon on Saturday. Possible protests are planned elsewhere in the county.

The government’s coronavirus lockdown regulations prevent gatherings of more than six people.

Police chiefs have already urged would-be protesters to stay within the rules. An open letter signed by the heads of the National Police Chiefs’ Council, College of Policing and Police Superintendent’s Association said: “Coronavirus remains a deadly disease and there are still restrictions in place to prevent its spread.”

Mr Pritchard echoed their concern. “We recognise that as part of a democracy there is a right for people to lawfully protest and to ensure people have the ability and freedom to be able to do that.

“We know there could be protests in Swindon. Our approach is to engage with the organisers.”

He added: “My advice to everybody is, if you feel you need to support this, is work with the police, be safe, make sure you listen to any advice, operate within the guidelines.”

The chief officer said Wiltshire Police was working closely with its internal groups representing black, Asian and minority ethnic officers, staff and communities. He recognised that there was more work to do, but added: “We’re absolutely committed to get this right.”