Facing a domestic backlash and the threat of foreign trade retaliation, Australia's Prime Minister on Tuesday appeared to slow-peddle a controversial decision to move the country's embassy to Jerusalem, saying he would first consult with allies.

A Saudi military trainer aircraft crashed while on a training mission in the northwest of the kingdom, killing the crew, the defence ministry said on Tuesday.

A family of six lost children lives quietly in a small apartment among strangers in this northern Iraqi city. The "man of the house," an 18-year-old, heads out each morning looking for day labor jobs to pay the rent. His 12-year-old sister acts as the mother, cooking meals, cleaning and caring for her young siblings.

Their home village is less than an hour's drive away, but they can't go back — Shiite militiamen burned down their house because their father belonged to the Islamic State group. And they fear retaliation by their former neighbors, so deep is the anger at the militants who once ruled this area.

Turkey will search the Saudi consulate in Istanbul later on Monday as part of an investigation into the disappearance of prominent journalist Jamal Khashoggi, a Turkish diplomatic source said.

The only crossing point between Syria and Israeli-controlled territory reopened Monday, an AFP correspondent reported, four years after closing due to the civil war on the Syrian side.

Two United Nations white jeeps crossed into Israeli-controlled territory through the reopened crossing near Quneitra in the Golan Heights after a deal between Israel, Syria and the UN.

Syria said Monday it was waiting for Russia to determine whether a deal creating a buffer in the northwest was implemented, hours after jihadists missed a deadline to leave the zone.

A Russian-Turkish truce agreement reached nearly a month ago for the region of Idlib gave "radical fighters" until October 15 to leave a proposed demilitarised area between government and opposition forces.

Turkey's President Recep Tayyip Erdogan and Saudi King Salman on Sunday discussed the case of missing journalist Jamal Khashoggi in their first telephone talks on the controversy, both sides said.

Amnesty International on Monday condemned the US-led coalition's failure to acknowledge and investigate its role in civilian killings during the battle a year ago to oust jihadists from Syria's Raqa.

A Saudi dissident in Quebec believes the kingdom hacked his phone and listened to calls he had with Jamal Khashoggi prior to the journalist's disappearance.

Shattered ultrasound machines and prosthetic limbs litter the hallways of Raqa's main hospital, still gutted a year after the Islamic State group made its infamous last stand in its Syrian heartland.