The mayor of Colorado Springs said it "certainly appears" the shooting and standoff at a Planned Parenthood clinic that left three dead Friday was an act of domestic terrorism .
Colorado Springs Mayor John Suthers would not comment on a motive for the shooting.
The shooting suspect, 57-year-old Robert Dear, entered the clinic Friday, where he engaged in a standoff with police that lasted for hours, authorities said.
Law enforcement sources told ABC News that Dear made rambling comments during the incident, some of which suggested animosity toward the health care provider.
Vicki Cowart, president and CEO of Planned Parenthood Rocky Mountains, said it appears the clinic was targeted.
Cowart said "Planned Parenthood holds the safety and the well-being of our patients and our staff at the very top of our list," adding that all of the staff at the Colorado Springs clinic escaped uninjured.