Islamic State militants in northern Syria have blown up another monument in the ancient city of Palmyra, officials and local sources say.

A satellite image confirms that the main temple in the ancient city of Palmyra in northern Syria has been destroyed, the United Nations says.

Palmyra's ancient Temple of Bel is still standing despite an attempt by Islamic State (IS) militants to blow it up, Syria antiquities chief says.

Islamic State militants have destroyed Palmyra's ancient temple of Baalshamin, Syrian officials and activists say.