Despite attacks by Houthi militants, tanker traffic in the Red Sea was stable in December, according to a Reuters Analysis

The United States applies to seize an Iranian tanker in Gibraltar, halting its expected release at the last minute and preventing a possible swap for British-flagged tanker held by Iran.

Britain denounces Iran's seizure of a British-flagged oil tanker in the Gulf as a "hostile act" and rejects Tehran's explanation that it seized the vessel because it had been involved in an accident.

The detained British-flagged tanker Stena Impero was in an accident with an Iranian fishing boat and ignored its distress call, Iran's Fars news agency reports, quoting an official.

Authorities from Singapore and Indonesia are searching for six people, after a chemical tanker collided with a freighter in the Singapore Strait.