In this photo released on the official Facebook page of the Syrian Presidency, Syrian President Bashar Assad, second from left, wearing a mask to help prevent the spread of the cor...

In this photo released on the official Facebook page of the Syrian Presidency, Syrian President Bashar Assad, center right, wearing a mask to help prevent the spread of the coronav...

In this file photo, shows a large refugee camp on the Syrian side of the border with Turkey, near the town of Atma, in Idlib province, Syria. Over the last two days, members of the...

This photo released by the Syrian official news agency SANA, shows a Syrian commercial plane carrying Syrian officials and journalists after it landed at Aleppo Airport, Syria. The...

This satellite image provided by Maxar Technologies shows refugee camps for internally displaced people near Kafaldin in northern Syria's Idlib province near the Turkish border. A ...

Turkish soldiers fire a missile at Syrian government position in the province of Idlib, Syria. Turkey, backer of Syria's opposition, has been deploying equipment and troops in the ...

Syrian government helicopter is shot by a missile in Idlib province, Syria. Syrian rebels shot down a government helicopter Tuesday in the country's northwest where Syrian troops a...

Turkish military convoy drives through the village of Binnish, in Idlib province, Syria. Several Turkish armored vehicles and tanks entered rebel-controlled northwestern Syria sinc...

In this photo released by the Syrian official news agency SANA, shows Syrian government forces entering the village of Tel-Toukan, in Idlib province, northwest Syria. On Thursday, ...

People inspect a damaged site after airstrikes on the town of Ariha, in Idlib province, Syria

Syrian rescuers use a bulldozer to remove rubble of a destroyed building that covers a street after airstrikes in the town of Ariha, in Idlib province, Syria. Warplanes struck the ...

Syrian flee the advance of the government forces in the province of Idlib, Syria, towards the Turkish border. Syrian government forces captured one of the largest and most strategi...

People look at destruction by an airstrike in the town of al-Jannah, west of Aleppo, Syria.

People walk past destruction by the government airstrikes in the town of Ariha, in Idlib province, Syria. Syrian government warplanes struck a market and an industrial area in the ...

A boy cries after government airstrikes in the town of Ariha, in Idlib province, Syria. Syrian government warplanes struck a market and an industrial area in the last territory in ...

People walk though Idlib city center after it was hit by airstrikes. Syrian government warplanes struck several rebel-held areas in the country's northwest on Saturday, killing at ...

This image released by the Syrian Presidency shows Russian President Vladimir Putin, left, meeting with Syrian President Bashar Assad, center, in Damascus, Syria. Putin's visit is ...

In this photo released by the Syrian official news agency SANA, a cameraman takes video of the damaged building targeted by Israeli missile strikes in the early morning in the Mezz...

People check the aftermath of a car bomb blast in the city of Qamishli, northern Syria. Three car bombs went off Monday in then city killing several and wounding tens of people.

Turkish and Russian patrol is seen near the town of Darbasiyah, Syria. Turkey and Russia launched joint patrols in northeastern Syria, under a deal that halted a Turkish offensive ...