At least seven Filipinos were injured in an explosion caused by a gas leak in Sampaloc, Manila, on Sunday morning.

A gas tank at a yogurt shop leaked and exploded, affecting several establishments in the area and injuring seven people, ABS-CBN News reported.

Police Staff Sergeant Aaron Cortez said several vehicles were also damaged by the explosion. The victims, who suffered minor injuries, were taken to Mary Chiles General Hospital for treatment.

According to the Manila Police District’s Explosive and Ordnance Division, no explosive device was found in the area. Police said the smell of LPG was in the air when they arrived to investigate.

The owner of the shop said the tank was turned off and everything was secured before the shop was closed on Saturday evening. Police are investigating to find the cause of the explosion.