By Omar Younis, Brad Brooks, Phil Stewart and Idrees Ali LOS ANGELES (Reuters) -U.S. Marines deployed to Los Angeles made their first detention of a civilian on Friday, part of a rare use of military force to support domestic police and coming ahead of national protests over President Donald Trump's military parade in Washington.

The troops are authorized to detain people who pose a threat to federal personnel or property, but only until police can arrest them.

By Brad Brooks, Jorge Garcia, Idrees Ali and Phil StewartLOS ANGELES (Reuters) -U.S. Marines were deployed to Los Angeles on Friday, the military said, a rare domestic use of its forces as protests over President Donald Trump's immigration raids spread nationwide.

Marines deployed to Los Angeles detained a civilian on Friday, the first known incident by active-duty troops since being sent to California by President Donald Trump. According to Reuters, which captured the scene,