US officials say President Trump has been persuaded not to pull the military out of Syria immediately, despite his declaration last week that the US army will be moved out of Syria very soon.

Advisers reportedly convinced him that it could risk resurgence by the Islamic State group.

The White House said the US military mission in Syria was coming to a quick end.

But it has not announced a timetable for a full troop withdrawal.

A statement said IS was almost completely destroyed, and that the US would consult its allies regarding future plans.

A senior administration official told reporters that the president had agreed at a meeting to keep troops in Syria for an undetermined period, but wasn't thrilled about it.

The US has about 2,000 personnel on the ground in eastern Syria supporting an alliance of Kurdish and Arab militias called the Syrian Democratic Forces.