STRATFORD, Conn. (AP) - An off-duty New Haven police officer shot and critically wounded his 18-year-old daughter, apparently mistaking her for an intruder after she sneaked out of their Stratford home and re-entered through the basement.

Eric Scott, 41, on the New Haven force for nine years, has not been charged in the Tuesday shooting.

"Mr. Scott was under the impression his daughter had gone to bed for the night," Stratford Capt. Thomas Rodia said. "He did not expect his daughter to be outside or down in the basement."

Investigators said Tasha Scott left her home late Monday to meet a boyfriend. She triggered a backyard motion sensor light as she tried to enter through a basement door.

Awakened by the light, Eric Scott spotted someone moving in the basement bathroom, police said. He fired his department-issued pistol once, hitting the teen in the knee. The bullet traveled up her leg and lodged in her thigh area, police said.

Her father called 911, authorities said.

The teenager underwent surgery and was listed in critical but stable condition Wednesday morning.

Scott has been on leave since being struck by a truck while on duty in November. A telephone listing for him had been disconnected Wednesday morning, and a message left for him at the New Haven department was not immediately returned.

(Copyright 2007 by The Associated Press. All Rights Reserved.)