Iran’s paramilitary Revolutionary Guard forces have seized a foreign oil tanker accused of smuggling oil with a crew of 12, Iran’s state TV reported Thursday, just days after an oil tanker based in the United Arab Emirates disappeared off trackers in Iranian territorial waters.

The U.S. has removed Turkey from the F-35 joint strike fighter program, and Turkey will lose its production work on the jet by March 2020, following its acceptance of the S-400 Russian-made air defense system last Friday.

The top U.S. military commander for the Middle East, Gen. Frank McKenzie, boarded his plane for a trip to the Persian Gulf just as news was breaking that Iran seized an oil tanker. The ship, called The Riah, is reportedly owned by the United Arab Emirates.

Iran is ready to hold talks with the United States if Washington lifts sanctions and returns to the 2015 nuclear deal it quit last year, Iranian President Hassan Rouhani said in a televised speech on Sunday.

Iran’s president Hassan Rouhani warned Europeans nations Wednesday that Tehran will “take the next step” in increasing its uranium enrichment closer to weapons-grade levels this coming Sunday if they do not offer a new deal by then.