A gunman armed with a shotgun walked into the U.S. Holocaust Memorial Museum in downtown Washington today and opened fire on a security guard before being shot and seriously wounded by two other guards, authorities said.

The security guard and the gunman were both transported to George Washington University Hospital with serious injuries, police said. A hospital spokesperson declined to release information on the condition of the two.

A third person sustained minor injuries in the shooting, according to police.

A law enforcement source identified the gunman as James W. von Brunn, who is known to authorities as a white supremacist.

Sgt. David Schlosser, a spokesman for the U.S. Park Police, said the security guard and the gunman were the only two persons who were hit by gunshots. Initial reports said at least one other person sustained gunshot wounds...

At least two people were shot today at Washington's Holocaust Museum, after an 89-year-old white supremacist entered the building and opened fire "indiscriminately".

Emergency services said that an adult male was taken to hospital suffering from "serious gunshot wounds" after the gunman opened fire in the museum, situated in central Washington, about one mile from the White House.

The gunman, believed to be James W Von Brunn, is in custody. Police said that he was shot by one of the museum's guards, and sources said he was hit in the head...