PHILADELPHIA (CBS) – Authorities are investigating the cause of a 4-alarm fire that broke out Saturday night in the city’s Port Richmond section.

The incident happened just after 6 p.m. Authorities say a fourth alarm was struck at about 7 p.m.

Flames engulfed two buildings that housed several businesses on Allegheny Avenue and Collins Street.

Neighbors say it took firemen more than an hour to contain the fire.

No injuries were reported.

Watch the video…