PORTLAND, Ore. — A man was arrested after a Portland police officer heard a stabbing victim call out for help from inside a car in Northwest Portland early Sunday morning.

At about 5:02 a.m., the officer was responding to an unrelated call near Northwest Naito Parkway and Northwest 9th Avenue when she heard someone calling out for help from inside a black Cadillac CTS. The officer called for additional officers who made a traffic stop of the Cadillac.

When the car stopped, a woman got out of the passenger side of the Cadillac and told officers she had been stabbed. The suspect, 69-year-old Curtis Watkins, got out of the driver's side and was arrested.

Officers say the victim and suspect got into an altercation inside the car during which the driver reportedly stabbed the victim. A knife was found by officers inside the Cadillac.

The victim was treated at the scene by emergency medical personnel but did not require ambulance transport to the hospital.

Watkins is being held at the Multnomah County Jail on charges of second-degree assault and unlawful use of a weapon.

Anyone with information about this incident or Curtis Watkins should contact Detective Michael Greenlee at 503-823-0416 or via email at michael.greenlee@portlandoregon.gov.