National Guard troops arrived in downtown Los Angeles on Sunday after being ordered into the city by President Trump in response to a weekend of violent clashes between law enforcement officers and protesters triggered by immigration enforcement operations in the area on Friday.

President Donald Trump ordered the deployment of 2,000 National Guards troops to quell immigration protests in Los Angeles, overriding California Gov. Gavin Newsom’s objections in a rare move.

The Federal Bureau of Investigation is offering a reward for information leading to the arrest of a suspect accused of injuring an officer by throwing rocks at law enforcement vehicles amid protests in Southern California on Saturday.