U.S. President Donald Trump told his Turkish counterpart, Recep Tayyip Erdogan, that Washington "would take a look at" the possibility of extraditing a U.S.-based Muslim cleric who Ankara suspects of being behind a 2016 coup attempt, but he made no commitment, the White House said on Tuesday.

"The only thing he said is that we would take a look at it," White House spokeswoman Sarah Sanders told reporters. "Nothing further at this point beyond that ... nothing committal at all in that process."

Turkey's foreign minister said on Sunday that Trump told Erdogan that Washington was working on extraditing the cleric, Fethullah Gulen, a former Erdogan ally who has lived in self-imposed U.S. exile for nearly two decades.