Iraqi forces retake crossing on Syria border from IS

Iraqi forces said they recaptured an important crossing on the border with Syria from the Islamic State group on Friday as they advanced into the jihadists' last bastion in Iraq.

Iraq's Joint Operations Command said troops had "regained full control" of the Husaybah border post on the edge of the town of Al-Qaim after launching a push to oust the jihadists.

Prime Minister Haider al-Abadi released a statement congratulating the armed forces for "entering into Al-Qaim and liberating" the border crossing.

An Iraqi army officer told AFP that the jihadists "deserted the border post after several of them were killed" and headed off into Syria.

Al-Qaim and the surrounding areas are the last remnants of the self-styled caliphate IS declared after rampaging across Iraq and Syria in 2014.

Iraqi forces backed up by air strikes from a US-led coalition launched the operation last week to seize back the strategically located pocket of barren desert along the Euphrates river.

IS is simultaneously battling for survival in its holdouts across the border in Syria, where government troops said they ousted the group from the key city of Deir Ezzor on Friday.