The call came at the request of the U.S. side, a day after a Turkish parliamentary commission voted to approve Sweden's NATO membership bid, the source added. The parliament's general assembly must also approve the bid for it to be ratified.

"Fidan stated that, regarding the sale of F-16s, we expect the U.S. administration and U.S. Congress to act in line with the spirit of alliance and keep the promises made," the source said.

(Reporting by Tuvan Gumrukcu and Huseyin Hayatsever; Editing by Daren Butler)