Pakistan has been hit by a wave of suicide bombings, coordinated grenade, bomb and gun assaults, and drive-by shootings blamed on Islamist extremists.
Following is a list of the major attacks:
November 13: A massive bomb blast outside the local headquarters of Pakistan's premier intelligence agency in the northwestern city of Peshawar kills at least seven people. Another three are killed in an attack on a police station in the northwestern city of Bannu.
November 11: A suicide car bomb tears through a crowded shopping street in the northwestern town of Charsadda, killing 32 people.
October 28: Also in Peshawar, a massive car bomb destroys a market crowded with women and children. Around 118 people die.
October 16: A suicide car bomb rips through a police investigation bureau in Peshawar, killing 13 people.
October 15: Gunmen with suicide vests and grenades attack three police buildings in the eastern city of Lahore and bomb a northwest station, killing 39 people.
October 12: A suicide bomber rips through a market as a paramilitary convoy passes in Shangla, a district neighbouring the northwestern Swat valley and the target of a anti-Taliban offensive. About 45 people, mainly civilians, are killed.
Tehreek-e-Taliban Pakistan (TTP) claims responsibility.
October 10/11: Ten militants besiege army headquarters in the garrison town of Rawalpindi, with 23 people killed and 39 hostages freed. The dead included 11 troops, three hostages and nine attackers. TTP claims responsibility.
October 9, 2009: At least 52 people die when a suicide bomber blows up his car in a market in Peshawar.
September 2008: A huge truck bomb devastates the luxury Marriott Hotel in central Islamabad, killing 60 people and injuring over 250.
August 2008: At least 64 people, most of them workers, die when a double suicide attack hits Pakistan's biggest armaments factory in Wah, a town northwest of Islamabad.
October 2007: Bomb attacks targeting two-time former premier Benazir Bhutto kill at least 139 people in Karachi, just hours after she returns to Pakistan for the first time in eight years. She survives unhurt but is killed along with around 20 of her followers in a second attack two months later.
July 2007: Around 100 people die when troops take control of the Red Mosque, ending an occupation by militants in the capital Islamabad.
Over the next two weeks, related attacks around the country take the toll to over 200.