Huerta, 58, the president of the Service Employees International Union California, was arrested while protesting an immigration raid in Los Angeles.

LOS ANGELES (AP) — A California union leader has been charged with conspiring to impede an officer during a demonstration over President Donald Trump’s immigration crackdown, authorities said Monday.

Service Employees International Union California President David Huerta was injured and detained while documenting an immigration enforcement raid in downtown Los Angeles Friday, labor union officials said — prompting protests and calls for his release.

The complaint describes law enforcement’s view the events surrounding the arrest on Friday of the president of the Service Employees International Union California at a protest over an immigration raid.

The rally for the release of SEIU California president David Huerta was one of several held in cities throughout the state, with more actions planned as the Trump administration ramps up immigration enforcement.

Law enforcement officials conducted sweeping immigration raids in Los Angeles as part of President Donald Trump's immigration crackdown efforts and arrested 44 people for immigration-related offenses and one for "obstruction,