Two suicide bombers killed at least 25 people in an attack on a Pakistani munitions factory today.
They struck at two different gates just as many workers were leaving the sprawling site in Wah, a garrison city about 20 miles from the capital Islamabad.
Pakistani security forces are involved in an escalating battle with Islamic extremists in two nearby regions of north-western Pakistan, despite government efforts to negotiate peace with militant groups.
The army and police were repeatedly targeted during a campaign of suicide bombings last year which culminated in the assassination of former Prime Minister Benazir Bhutto.