WENTZVILLE • A woman suspected in the stabbing of a worker at the General Motors assembly plant in Wentzville turned herself in at the Wentzville police headquarters about 5:30 p.m. Thursday, police said.

A female employee was stabbed five times Wednesday night. Her injuries were not life-threatening, said Wentzville police Maj. Paul West. Authorities described her injuries as moderate.

West said the attacker apparently hid in a bathroom inside the plant with a Taser and a knife. Authorities are investigating how she got inside. She was not employed at the plant.

The victim was attacked about 10:45 p.m. Wednesday inside the General Motors plant, at 1500 East Highway A. The attacker then ran off.

The suspect is in her 20s and is from north St. Louis County, West said.

Police did not release details about the circumstances leading up to the attack.