Report from United Nations panel says members of group's sleeper cells pose the most serious terrorist threat in Afghanistan today

Taliban claims to have improved security since storming back to power in 2021, but there have been scores of attacks, many claimed by local Islamic State chapter

Islamic State now poses main military threat to new Afghan rulers as they try to consolidate hold over war-torn country

State Department also offers money for any information on culprits behind the deadly attack on Kabul airport, which killed more than 100 people including 13 American soldiers

Explosion is the latest in a series of attacks in the Afghan capital that have been claimed by the Islamic State

50 or more wounded after bomber detonates at entrance to site and armed men open fire; attack not yet claimed by any group

Russian envoy calls on international governments to abandon their 'bias' against new Afghan government and offer aid to country's citizens

Jihadists say two suicide bombers carried out separate attacks on different parts of mosque in Kandahar

Blasts come exactly a week after a suicide bomb attack on Shiite worshippers in the northern city of Kunduz that was claimed by Islamic State

Aid worker says Taliban keeping family members of victims from gathering at hospital for fear of further attacks after bombing kills scores of Shiites during prayers