LIVERPOOL, England, Aug 6 (Reuters) – Enough police would be on the streets to control anti-Muslim and anti-immigrant riots over the coming days, British Prime Minister Keir Starmer said, as he attempted to reassure communities readying for more violent protests on Wednesday. Riots have swept across several towns and cities after false social media messaging misidentified a suspected killer in the murder of three girls at a Taylor Swift-themed event in Southport, a seaside town in northwest England, as an Islamist migrant.

It has spread to unrest, with rioters targeting mosques and smashing windows of hotels housing asylum-seekers from Africa and the Middle East, chanting: “Get them out,” in the first widespread outbreak of violence in Britain for 13 years.

It was reported online that immigration centers and law firms that aid migrants would be targeted on Wednesday, and anti-fascist groups then said they would counter any such demonstration. After an emergency meeting with ministers and police chiefs on Tuesday, Starmer said police would be in place to cope with any further disorder. “Our first duty is to ensure our communities are safe,” he told broadcasters.

“They will be safe. We are doing everything we can to make sure that where a police response is needed, it is in place, where support is needed for particular places, and that is in place.” He said the fact the protests were being held in several locations made it difficult, but he had received the assurance he needed that police could cope with any disorder.

The government has increased prison capacity to cope with the large number of arrests made during the riots, which have prompted a growing number of countries to warn their citizens about the dangers of traveling in Britain. More than 400 people had been arrested, 100 charged, and he was expecting sentencing to start soon, Starmer said.

“Anybody involving themselves in this disorder is going to feel the full force of the law,” he said.

Three people will be sentenced on Wednesday in Liverpool, northwest England, after admitting violent disorder, the Crown Prosecution Service said. The justice department, set to free some prisoners early amid a jail overcrowding crisis, said it had secured nearly 600 prison places for those involved in violence. Starmer vowed a day of reckoning for the rioters, who hurled bricks at police and counter-protesters, as well as looting shops and burning cars.

A 28-year-old man was charged Tuesday with stirring up racial hatred over Facebook posts linked to the disorder, and a 14-year-old boy pleaded guilty to violent disorder.

Disorder flared again Monday night in Plymouth, southern England, and in Belfast in Northern Ireland, where hundreds of rioters threw petrol bombs and heavy masonry at officers and set a police vehicle on fire. The police have blamed the violence on online disinformation amplified by high-profile figures.

The police have said the attack was not terrorism-related and that the suspect was born in Britain. Media reports have said the suspect’s parents moved to Britain from Rwanda, a majority Christian-country. In a YouGov poll on Tuesday, three-quarters of respondents said the rioters did not represent the views of Britain as a whole, with 7 percent saying they supported the violence.