A local immigrant rights organization said more than 45 people were detained in the operations, which were described as “random sweeps.”

Federal immigration authorities arrested 44 people Friday across Los Angeles, prompting clashes outside at least one location as law enforcement threw flash bangs to try to disperse a crowd that had gathered to protest the detentions.

After a day of contention and little information about the nature of an immigration enforcement operation in Los Angeles, the Department of Homeland Security has finally released details about the joint operation conducted Friday morning.