Seven suspected militants have died in a blast in the Pakistani city of Karachi.
Police say explosives being stored in a house went off accidentally. Weapons and suicide vests were also discovered.
The explosion is likely to raise fears of fresh militant attacks on the city.
Until a deadly bombing last month left more than 40 dead, the country’s commercial hub had been largely spared the bloodshed plaguing the north – in particular the province of Waziristan.
That is the current focus of the Pakistani military, which is trying to round off an offensive against Taliban strongholds. But so far the operation has done little to stem attacks on civilian targets, which have intensified in recent months and left hundreds dead.
With this latest blast in Karachi, the fear now is that militants are taking their fight well beyond the frontline.