Philadelphia police fatally shoot man armed with knife in Frankford

PHILADELPHIA (WPVI) -- Authorities are investigating after a Philadelphia police officer fatally shot a man armed with a knife on Friday evening in the city's Frankford section.

The shooting happened at about 5 p.m. on the 1500 hundred block of Pratt Street.

Police say a man with a knife reportedly approached police.

He was reportedly chasing a SEPTA employee when police interceded, officials say.

Police then fired at least one shot, striking the suspect, authorities said.

The man, whose identity is unknown, was taken to Jefferson-Torresdale Hospital where he was pronounced dead.

Officials say no officers were injured in the incident.

The investigation is ongoing.