British police are gearing up for another night of violence amid concerns that far-right groups plan to target as many as 30 locations around the United Kingdom on Wednesday following a week of rioting and disorder.

Authorities are mobilizing about 6,000 specially trained officers to respond to disorder throughout the U.K., and London’s Metropolitan Police Service said it would do “everything in our power” to protect the capital.

“We know about the events planned by hateful and divisive groups across the capital,” Deputy Assistant Commissioner Andy Valentine of the Met said late Tuesday. “They’ve made their intention to cause disruption and division very clear … We will not tolerate this on our streets.”

U.K. cities and towns across have been wracked by violence for the past week as angry mobs egged on by far-right extremists have clashed with police and counter-demonstrators sparked by the spread of misinformation about the identity of the suspect in a stabbing rampage that killed three young girls in the seaside community of Southport. The suspect was falsely identified as an immigrant and a Muslim.

Rioters spouting anti-immigrant slogans have attacked mosques and hotels housing asylum-seekers, with reports emerging of violent counter-attacks in some communities.

Call to ‘mask up’ for protests

Internet chat groups have shared a list of law firms specializing in immigration and advice agencies as possible targets for gatherings Wednesday. The messages have invited people to “mask up” if attending.

Prime Minister Keir Starmer held a second consecutive meeting of the government’s COBRA emergency response committee on Tuesday to coordinate the response to the crisis, which he has described as “far-right thuggery.”

Police have already made more than 400 arrests around the country, and the government has pledged to prosecute and jail those responsible for the disorder.

WATCH | Violent anti-immigration protests in U.K. partly fuelled by misinformation: 

Violent anti-immigration protests in U.K. partly fuelled by misinformation

Violent far-right anti-immigration protests spread across the U.K over the weekend, fuelled in part by online misinformation about the suspect in a deadly stabbing attack at a children’s dance party.

The government has also announced new measures to protect mosques.

London Mayor Sadiq Khan said in a post on X that the police, city hall and community leaders are working to protect targeted buildings and places of worship. Those involved in the disorder will feel the full force of the law, he said.

“I know the shocking scenes have left many Muslims and minority ethnic communities scared and fearful, so I ask my fellow Londoners to check on their friends and neighbours and show them that care and compassion is what Londoners are all about,” he said. “In London, we have zero-tolerance for racism, Islamophobia, antisemitism or any form of hate.”