Crews investigating vacant home collapse in Philadelphia's Wynnefield neighborhood

PHILADELPHIA (WPVI) -- Crews were on the scene after a house suddenly collapsed in the Wynnefield section of the city.

Officials responded to the collapse at Woodbine and Bryn Mawr avenues around 11 p.m. Saturday.

Police say there was no one inside the home when it happened.

The owner passed away more than a year ago, and the home was reportedly going to be put up for sale.

Crews are now working to determine what caused the collapse.