Investigation underway after several porch roofs collapse in Philadelphia

PHILADELPHIA (WPVI) -- Crews are investigating what caused several porch roofs to collapse in Philadelphia's Tioga section.

It happened just before 10 a.m. Wednesday on the 3900 block of Pulaski Avenue.

Chopper 6 was overhead where it appeared several homes sustained damage.

Officials said emergency responders helped one person out of their home.

No injuries were reported.