Published: Jan 11, 2011 6:32 PM EST
Updated: Jan 11, 2011 3:33 PM EST

TUCSON, Ariz. (AP) - Doctors say an Arizona congresswoman is breathing on her own after being shot in the head.

Dr. Michael Lemole, Giffords' neurosurgeon, says they've left a breathing tube in Rep. Gabrielle Giffords to protect her airway, but the congresswoman is drawing breaths on her own. She's alert and responding to doctors.

Six people are still hospitalized after the shooting Saturday at a Tucson grocery store. The attack killed six and injured 14 others.

Giffords, a three-term Democrat, was gravely wounded. A federal judge was among those killed.

(Copyright 2011 by The Associated Press. All Rights Reserved.)