Powerful explosions have been reported in the Emirati port of al-Fujairah, where seven oil tankers have caught fire.
The blasts took place early on Sunday morning, according to the Lebanon-based Al Mayadeen television channel, which reported the development hours later.
It said the seven oil tankers had been completely burnt and that firefighters were still trying to extinguish the blaze.
Some social media activists said that American and French aircraft of unspecified type were flying over the port.
It was not immediately clear what had caused the explosions or the fire.
(This item is being updated.)