WOOLWICH — A Rockland woman was killed Monday when her van collided head-on with another van on Route 1, the Sagadahoc County Sheriff’s Department said.

Witnesses told authorities that the victim, Lillian Kurz, 65, had drifted into the opposite lane, where she collided with a van driven by Arthur Williams, 55, of Barkhamsted, Conn.

There was no word on whether Williams or his passenger had been injured.

The accident occurred at the intersection of Route 1 and the George Wright Road shortly after 3 p.m., a deputy said.