FILE PHOTO: U.S. Senator Lindsey Graham speaks during the roundtable with U.S. Border Patrol and members of the Senate Judiciary Committee at a Border Patrol station in McAllen, Texas, U.S. July 12, 2019. REUTERS/Veronica G. Cardenas

WASHINGTON (Reuters) - Republican U.S. Senator Lindsey Graham said on Tuesday he will introduce a bill on Thursday sanctioning Turkey for its invasion of northern Syria.

“I will be introducing sanctions against Turkey Thursday and I do appreciate what the (Trump) administration has done against Turkey through executive action but more to follow,” Graham told reporters.