SAN FRANCISCO — A gunshot was fired into the chambers of a federal judge in Oakland over the weekend, triggering calls for heightened security in the East Bay’s federal courthouse.

A bullet passed through the chambers of U.S. District Judge Jeffrey White and lodged in the wall of the jury room late Saturday night or early Sunday morning, a spokesman for the U.S. Marshals Service said. The shot appears to be a “stray bullet” that was not directed at White or members of his staff, the spokesman added.