Six people were wounded today when a car bomb exploded in front of a church in the centre of the Pakistani city of Karachi.
The wounded included two paramilitary soldiers and two policemen, who had arrived to investigate a smaller explosion moments earlier thought to have been caused by a firecracker.
A police spokesman said the bomb in the car exploded soon after a firecracker was thrown from a passing car.
"We don't know whether it was a time device or a remote control device," he told reporters.
Since Pakistan joined the US-led war on terror in 2001 Karachi and other cities have seen a string of attacks by suspected Islamic militants on Western and Christian targets.
