US President Barack Obama will hold talks with Saudi Arabia's King Salman on Sunday, a US official said, as world leaders seek a united response to the Paris assaults claimed by Islamic State jihadists.

The US and Saudi leaders plan to meet on the sidelines of a two-day summit of the Group of 20 top economies in the heavily guarded Turkish Mediterranean resort of Antalya where the battle against jihadist violence is on the leaders' agenda, the official said.

The Paris attacks, which killed 129 people, have sent a jolt through the gathering, where leaders will try to forge a joint statement on the attacks and narrow a deep divide over conflict-riven Syria.

Washington and Riyadh are part of a US-led coalition that last year launched an air campaign targeting the Islamic State jihadist group which controls swathes of territory in Syria and neighbouring Iraq.
Source: AFP