Tehran says shooting carried out by Islamic State to avenge execution of two men involved in attack on same site last year

Shooting at Shiraz's Shah Cheragh, revered by Shiite Muslims, comes less than a year after attack at same location blamed on Islamic State left 13 dead

Terror group vows to keep fighting 'until Doomsday' despite their defeat in 2019, death of leader

Extremist group says Abu al-Hussein al-Husseini al-Qurashi was killed while fighting rival jihadists, names Abi Hafsan al-Hashimi al-Qurashi as new leader

British government's decision is the fifth time London has officially acknowledged a genocide

Attacks on Brussels' main airport and on the metro system, which also wounded hundreds of people, were claimed by the Islamic State terror group

Two countries maintained relations even as most Arab League countries isolated Damascus over crackdown on 2011 protests

Nationalities of men not revealed; Iran previously said attack involved people from other countries; public executions relatively rare, with almost all carried out in prisons

Civil rescue group says passerby also wounded in attack on alleged militant riding motorcycle in northern Syria

Suspects are citizens of Turkmenistan, Tajikistan, Kyrgyzstan; prosecutors say group did not have 'tangible terrorist plot'