The Counter-Terrorism Department in Pakistan is investigating a car explosion in Karachi.
The blast took place on Monday 3 December in the Khadda area of the city, near to a market. Officials say CCTV evidence shows a man driving a stolen car and a motorcyclist abandoning the vehicle.
No casualties have been reported.
The Karachi bomb disposal squad found six gas-cylinders with at least 8-10kg of explosives, and say the device failed to explode completely.