Associated Press: At least two people were shot Wednesday at the U.S. Holocaust Memorial Museum in Washington, authorities said.

D.C. police spokeswoman Traci Hughes says a person walked into the museum with a gun and shot a guard. Hughes says the shooter was also shot. Authorities have not identified the man, who was reported to be born in 1920.

Hughes says the victims' conditions were not known. Both were being rushed to a hospital.

U.S. Park Police gave slightly different information, saying three people had been shot.

Fire department spokesman Alan Etter told MSNBC that a third person was hurt after being cut by broken glass.

NBC correspondent Pete Williams said the suspect apparently did not get far into the museum before being confronted by a guard.

The museum normally has a heavy security presence with guards positioned both inside and outside the museum. All visitors are required to pass through metal detectors at the entrance, and bags are screened.

The museum, just off the National Mall near the Washington Monument, is a popular tourist attraction. It draws about 1.7 million visitors each year.

Roads surrounding the museum have been closed.

The mother of a Massachusetts teenager says children at the museum heard several gunshots before they were evacuated from the building.

Sandy Perkins says her daughter, Abigail, called her shortly after the shooting.

Abigail told her mother that some of her friends were very shaken, but otherwise were fine.

The teens did not see where the shots were coming from before they were safely evacuated to buses outside the museum.

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