Deadliest attacks in Afghanistan since 2007
Here is a summary of the deadliest attacks, which have all occurred after 2007.
The Taliban attack on an Afghan intelligence base on Monday in which dozens were killed is among the deadliest since the fall of the group's regime in 2001.
Here is a summary of the deadliest attacks, which have all occurred after 2007:
December 24: An hours-long bomb and gun attack on a Kabul government compound kills at least 43 people. The Taliban denies responsibility.
November 20: A suicide bomber blows himself up among religious scholars inside a Kabul wedding hall, killing at least 55 people and wounding 94 others.
April 22: An Islamic State bomber kills 57 people, including women and children, and wounds more than 100, all civilians, outside a voter registration centre amid preparations for legislative elections in October.
September 11: A suicide attack on Afghans protesting the appointment of a local police chief in the eastern province of Nangarhar kills at least 68 people and wounds another 165.
January 27: An ambulance packed with explosives detonates in a crowded street in the heart of Kabul, killing more than 100 people, mostly civilians. The attack is claimed by the Taliban.
October 17: Two separate Taliban suicide and gun attacks on police and soldiers leave 80 dead and scores wounded.
The deadliest, which claims 60 lives, is on a police compound in the city of Gardez in Paktia province where militants disguised as police detonate bomb-filled vehicles that clear the way for gunmen to enter.
Another 15 security officials and five civilians are killed in a separate ambush in the neighbouring province of Ghazni.
May 31: More than 150 people are killed and hundreds wounded when a massive truck bomb rips through Kabul's diplomatic quarter, shattering windows hundreds of metres away.
April 21: Taliban militants in soldiers' uniforms enter a military base in the northern city of Mazar-i-Sharif and open fire on unarmed troops at close range in the mosque and dining hall. At least 135 are killed.
March 8: Gunmen disguised as doctors storm Afghanistan's largest military hospital in Kabul in a six-hour attack claimed by the Islamic State. The official death toll is 50 but security sources and survivors say it exceeds 100.
July 23: Twin explosions rip through crowds of Shiite Hazaras in Kabul, killing at least 85 people. It marks the first major Islamic State assault on the capital.
April 19: A truck bomb followed by a shootout leaves 64 people dead and nearly 350 injured in central Kabul in a Taliban-claimed attack.
December 6: An attack in Kabul targeting the Shiite minority on the holy day of Ashura kills 80 people. A second attack in the northern city of Mazar-i-Sharif kills another four. The Taliban deny responsibility.
July 7: 60 people, including two Indian diplomats and two Indian guards, are killed in a suicide car bombing on the Indian embassy in the capital. The Taliban say they were not involved.
February 17: 140 boys and men, including more than 50 auxiliary police officers, are killed in a suicide attack among a crowd at a dogfight in the southern city of Kandahar. The Taliban deny responsibility.
November 6: 79 people are killed, including 59 children and six parliamentarians, in a suicide attack on a delegation of VIPs visiting a sugar factory in Pul-i-Khumri north of Kabul. The Taliban deny involvement.