Witness: Driver slammed into police cruiser

Washington (CNN) - Police near the U.S. Capitol opened fire on Thursday on a car being chased by authorities, hitting a woman driving the vehicle that also contained a child, an intelligence source told CNN.

The child appeared to be uninjured, according to the source and witnesses.

D.C. resident Frank Schwing was at the base of the Capitol's steps and saw the black sedan speeding by, followed by several police cruisers.

"They stopped in a grove of trees at the base of the Capitol. Police came out with their guns drawn up on the passenger side, tried to get the driver out," said Schwing.

"At that point the driver slammed into reverse, slammed into a cruiser, did a 180, took off and at that point, there were half a dozen or so shots fired," said Schwing.