BANGKOK -- Blasts at a downtown discount store in southernmost Thailand on Tuesday injured more than 30 people, police said.

Two bombs were separately detonated in early afternoon Tuesday at the parking lot of Big C discount store and at a spot inside the store in Pattani province, about 1,050 kilometers south of Bangkok. Most of the victims were slightly injured while two others were seriously wounded.

The blasts reportedly injured more than 30 shoppers and devastated a number of parked vehicles, the police said.

Insurgents in the turbulent Deep South of the country were believed accountable for the bomb attack.

Explosive Ordnance Disposal units scrambled to the scene to investigate.