A group of mayors from across the Los Angeles region joined together Wednesday to demand the Trump administration stop federal immigration raids that they say have spread fear throughout their communities.

More than 30 mayors from the region stood with Los Angeles Mayor Karen Bass at a news conference denouncing the deployment of National Guard troops and Marines to the city.

Bass accused the White House of “provoking” the protests and riots, suggesting Los Angeles “was part of an experiment to determine how far the federal government can go in reaching in and taking over power from a governor, power from a local jurisdiction, and frankly leaving our city, and our citizens, our residents in fear.”

President Donald Trump, however, posted Thursday morning on the Truth Social platform that Los Angeles “would be a crime scene like we haven’t seen in years” if he had not sent in the military.

Meanwhile, Downtown Los Angeles remains under a curfew. 

Los Angeles police have made nearly 400 arrests and detentions since Saturday, the vast majority of which were for failing to disperse, according to the police department. A handful of more serious charges have included assault against police officers, possession of a Molotov cocktail and possession of a gun. 

Nine police officers have been hurt, mostly with minor injuries.

The Associated Press contributed to this report.