US President Donald Trump welcomes Turkish President Recep Tayyip Erdogan at the White House in Washington, DC, Nov. 13, 2019. Photo: Reuters / Tom Brenner.

US President Donald Trump discussed developments in Syria and Libya in a phone call with Turkish President Recep Tayyip Erdogan on Monday, a White House spokesman said on Twitter.

“The two leaders discussed the need to eliminate foreign interference and maintain the ceasefire in Libya. The leaders agreed that the violence being carried out in Idlib, Syria must stop,” White House spokesman Judd Deere said in a tweet.

A renewed drive by Syrian President Bashar al-Assad to recapture rebel-held Idlib province in Syria’s northwest sparked a fresh exodus of many thousands of civilians toward Turkey’s border on Monday amid heavy air strikes, aid workers and witnesses said.

In Libya, military commander Khalifa Haftar moved forces on Sunday toward the city of Misrata, which is allied to the country’s internationally-recognized government, officials and residents said.

The increase in fighting came a week after Turkey, which backs the government in Tripoli, and the United Arab Emirates, Egypt and Russia, which back Haftar, agreed with Western powers at a summit in Berlin to push for a lasting ceasefire and uphold an arms embargo.