The U.S. says Iran briefly seized an oil tanker near the Strait of Hormuz Wednesday.
U.S. Central Command released this video, which it says shows Iranian forces coming down from a helicopter onto a Liberian-flagged ship. It said two other ships were also involved in the incident.
Iranian officials have not acknowledged the action or given a reason for it.
The ship's last known location appeared to be off the eastern coast of the United Arab Emirates.