FILE PHOTO: Turkish Foreign Minister Mevlut Cavusoglu salutes to Russian President Vladimir Putin during a meeting in the Kremlin in Moscow, Russia August 24, 2018. Alexander Zemlianichenko/Pool via REUTERS

ANKARA (Reuters) - Turkish Foreign Minister Mevlut Cavusoglu spoke by phone with his U.S. counterpart Mike Pompeo on Tuesday at the request of the U.S. side, a Turkish diplomatic source said, amid a bitter row between the two NATO allies.

Ankara and Washington have been at loggerheads over the fate of a U.S. evangelical pastor being tried in Turkey for terrorism charges that he denies. The row has sent Turkey’s lira plunging and both sides have imposed import tariffs.