Saudi Arabia said on Monday that two of its oil tankers were among those attacked off the coast of the United Arab Emirates and described it as an attempt to undermine the security of crude supplies amid tensions between the United States and Iran.

Axar.az reports citing Reuters.

The UAE said on Sunday that four commercial vessels were sabotaged near Fujairah emirate, one of the world’s largest bunkering hubs lying just outside the Strait of Hormuz. It did not describe the nature of the attack or say who was behind it.

The UAE had not given the nationalities or other details about the ownership of the four vessels. Riyadh identified two of them as Saudi and a Norwegian company said it owned another. Reuters images showed the fourth vessel was the UAE-flagged A. Michel, a fuel bunker barge.