Cause determined in deadly Feltonville food truck explosion

FELTONVILLE (WPVI) -- The fire marshal has determined the cause of the food truck explosion that killed two people in the Hunting Park section of Philadelphia last month.

The blast was the result of a buildup of propane gas.

However, investigators could not determine what ignited propane.

RAW: Feltonville food truck explosion

42-year-old Olga Galdamez and her daughter, 17-year-old Olga Landaverry, passed away from their injuries.

11 others were injured during the food truck explosion on July 1st on 300 block of West Wyoming Avenue.

Two remain in the hospital in stable condition.