CONCORD — The FBI put up a reward of up to $25,000 Wednesday as they sought the identity of a woman who they said assaulted federal officers during protests at a Contra Costa County immigration court building on Tuesday.

The FBI’s San Francisco field office is offering a reward of up to $25,000 for information leading to the identification and arrest of a woman accused of assaulting federal officers and stealing a special agent’s badge in Concord this week.