The AP reports:

Tracking data shows an oil tanker based in the United Arab Emirates traveling through the Strait of Hormuz drifted off into Iranian waters and stopped transmitting its location over two days ago, raising concerns Tuesday about its status amid heightened tensions between Iran and the U.S.

The report details that the Riah, a 58-meter oil tanker which operates frequently in the region, switched off its transponder for the first time in three months after 11pm on Saturday, based on tracking data. 

As of Monday "red flags" were raised as US officials began inquiring of the Riah's status. CNN's Pentagon correspondent Barbarra Starr had this to say based on intelligence sources: "US intel increasingly believes UAE tanker MT RIAH forced into Iranian waters over the weekend by #IRGC naval forces. UAE isn't talking."

However, this could be another case of hawkish US intelligence and defense officials hyping a false threat. Starr continued based on her source: "Some Gulf sources say ship simply broke down/towed by Iran. US says though no contact with crew. Last location Qesham Island."