Latest: It has now been confirmed that 20 hostages have been killed during a siege in a cafe in the Bangladesh capital Dhaka.

US authorities are investigating whether anyone helped the gunman who massacred 49 people at a gay nightclub in Orlando, but said they did not believe anyone connected to the shooting posed a current danger to the public.

The suspect in the shooting of a Philadelphia policeman told investigators he shot the officer in the name of Islam and pledged allegiance to the Islamic State group, according to US police.

Jordan executed two al Qaida prisoners by hanging, after Islamic State (IS) militants put to death a captured fighter pilot by burning him alive in a cage.