Military searches for men involved in deadly attack on mosque in Rawalpindi.
Places that attract crowds are becoming more and more dangerous for Pakistanis.
Since the army launched a fresh offensive against the Taliban, there have been virtually daily bombings and killings.
Fear of attacks has caused a big fall in the number of worshippers for Friday prayers at Pakistan’s biggest mosque.
Al Jazeera’s Imran Khan reports from the Shah Faisal mosque in Islamabad, a week after attackers killed 36 people in a mosque in the country’s north.