FILE PHOTO: U.S. President Donald Trump, Turkey's President Tayyip Erdogan and Germany's Chancellor Angela Merkel attend a family photo opportunity at the NATO leaders summit in Watford, Britain December 4, 2019. REUTERS/Christian Hartmann/Pool

ANKARA (Reuters) - Turkish President Tayyip Erdogan and U.S. President Donald Trump exchanged views on an immediate halt to fighting in Syria’s Idlib province Saturday, the Turkish presidency said.

The two leaders agreed by phone that Syrian government forces’ attacks in the northwestern province, which killed 13 Turkish troops, were unacceptable, it said in a statement.