LANCASTER, Pa. (AP) — Authorities say a Lancaster police officer fatally shot a 35-year-old homeless man who lunged at him with a 9-inch knife.

The shooting happened around 7:15 a.m. Monday and the man died at a hospital about three hours later, having suffered a single gunshot wound to the chest.

Lancaster County District Attorney Craig Stedman says he’s reviewed surveillance video of the incident and preliminarily determined the shooting was “entirely justified.”

Police Chief Keith Sadler says it started with an officer responding to a report of a man urinating in public. He says the man pulled a knife as the officer checked his identification and a chase ensued.

Authorities say the man was given chances to drop his weapon, but instead lunged at an officer with the knife and was shot.

(© Copyright 2013 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)

Top Content On CBSPhilly

Watch & Listen LIVE