Rescuers pulled four people, including a six-year-old, alive from the rubble in Syria Friday, four days after a devastating earthquake killed more than 22,700 people in Syria and neighbouring Turkey, an AFP correspondent and state media reported.

Volunteers in the rebel-held northwestern town of Jandairis pulled shell-shocked Musa Hmeidi from under the wreckage of a crumpled building as dozens of residents cheered them on, the AFP correspondent said.

The United Nations rights chief called Friday for an immediate ceasefire in Syria to facilitate the delivery of aid to all victims of the region's devastating earthquake.

"At this terrible time in Turkey and Syria, we call for urgent delivery of assistance to ALL in need," the UN rights office said in a tweet.

"UN human rights chief Volker Turk calls for immediate ceasefire in Syria, and full respect for human rights and humanitarian law obligations so help can reach everyone," it added.

Two people, one of them a child, were killed in a car ramming attack on a bus stop in Israeli-annexed east Jerusalem on Friday, Israeli authorities said.

The attack, which comes amid spiralling violence in the Israeli-Palestinian conflict this year, was condemned by Washington as "unconscionable".

A police spokesperson said that at around 1:30 pm (1130 GMT) the driver of the car, a 31-year-old resident of Issawiya, a Palestinian neighbourhood of east Jerusalem, hit "at high speed (...) innocent people waiting at the bus stop".

In Syria's coastal city of Jableh, Mohammed Daya has turned his farmland into a makeshift graveyard, with cemeteries overwhelmed as more bodies are pulled from the rubble after Monday's devastating earthquake.

The 7.8-magnitude quake struck near the Turkish city of Gaziantep, about 40 kilometres (25 miles) from the Syrian border, killing more than 22,000 people, including at least 3,377 in the war-torn Arab country.

Rescuers pulled a two-month-old baby and an elderly woman from the rubble on Saturday, five days after an earthquake devastated Turkey and Syria, leaving more than 25,000 dead.

Tens of thousands of local and international rescue workers are still scouring through flattened neighbourhoods despite freezing weather that has compounded the misery of millions now in desperate need of aid.

The White Helmets rescue group accused the United Nations on Friday of botching its response in rebel-held areas of northwestern Syria to this week's devastating quake.

Leveraging years of experience gleaned during Syria's more than decade-long civil war, the White Helmets have been spearheading rescue efforts in rebel areas with virtually no outside help.

Kurdish militants from the outlawed PKK group announced a temporary halt in fighting to facilitate rescue work after the huge earthquake that struck southeastern Turkey and parts of Syria.

The Kurdistan Workers' Party (PKK) has been proscribed as a terrorist organisation by Ankara and its main Western allies for waging a brutal insurgency that has claimed tens of thousands of lives since 1984.

Ankara is also trying to ban a top opposition party that supports Kurdish causes over its alleged links to the militants.

With Cyprus's ruling DISY out of the presidential race for the first time in its history, the conservative party's decision to back neither candidate has thrown Sunday's run-off wide open.

Last Sunday's first round results and the DISY development have changed everything.

"I expect a close result, and either of the candidates can win," said Hubert Faustmann, a politics and history professor at the University of Nicosia.

"The choices of the DISY supporters will decide this election."

Hakan Tanriverdi has a simple message for President Recep Tayyip Erdogan days after Turkey suffered its worst disaster in generations: "Don't come here asking for votes."

The earthquake that killed more than 21,000 people across Turkey and Syria came at one of the most politically sensitive moments of Erdogan's two-decade rule.

The Turkish leader has proposed holding a crunch election on May 14 that could keep his Islamic-rooted government in power until 2028.

The death toll from the massive earthquake in Turkey and Syria kept on climbing Thursday, topping 20,000 as the first UN aid reached Syrian rebel-held zones but hopes of finding more survivors faded.

Bitter cold has hampered the four-day search of thousands of flattened buildings and threatened the lives of many quake victims who are without shelter and drinking water.

Relatives were left scouring body bags laid out in a hospital car park in Turkey's southern city of Antakya to search for missing relatives, an indication of the scale of the tragedy.