Updated:

A woman was shot and killed after she allegedly rammed into barricades near the White House and then led police on a chase toward the U.S. Capitol on Thursday, law enforcement officials said.

Capitol Police Chief Kim Dine said it appeared to be an isolated incident and not terrorism related. Dine said the suspect "attempted to pass a barricade" and later struck a Capitol Hill police officer with her car. Dine said the officer is in good condition.

D.C. Police Chief Cathy Lanier said the suspect was shot by police and pronounced dead. She was later identified in multiple reports as Miriam Carey, 34, a dental hygienist from Stamford, Conn.

Terry Gainer, Senate Seargent at Arms said a young child was in the car with the suspect. The 1-year-old is uninjured but was taken to the hospital, officials said.

The Capitol building was locked down for about 30 minutes following the reports of the gunshots.