Aug 13 (Reuters) - Abu Dhabi National Oil Company said two

of its vessels were attacked while transiting the Strait of

Hormuz on Thursday evening, with no injuries reported, as the

United Arab Emirates accused Iran of carrying out the attack.

The attack was the second such incident involving ADNOC

vessels in less than a week. On Saturday, the UAE condemned what

it said was an Iranian attack on a vessel linked to the state

oil company as it passed through the strait.

ADNOC said the situation had been brought under control,

according to the UAE's state news agency WAM.

The UAE Foreign Ministry condemned what it called a "hostile

Iranian attack" on the two ADNOC vessels. It said Iran's

Revolutionary Guards had committed "acts of piracy" by targeting

commercial shipping and using the strait as a tool of economic

pressure or blackmail, posing a direct threat to regional

stability and global energy security.

Neither WAM nor the Foreign Ministry gave details about the

vessels, their cargoes or possible damage. No injuries were

reported.

There was no immediate comment from Iran's Foreign Ministry

or the IRGC.

About a fifth of the world's oil and liquefied natural gas

passed through the narrow waterway between Oman and Iran before

the conflict. Since the U.S.-Israeli war with Iran broke out on

February 28, shipping has been repeatedly disrupted, raising

freight rates and creating security concerns.

Iran's Revolutionary Guards have previously threatened

action against vessels transiting the strait if they are linked

to Tehran's adversaries or fail to comply with Iranian

directives.

ADNOC said on Friday it had been significantly affected by what

it described as unprovoked attacks on its personnel and assets,

while continuing to meet customer requirements in an

"exceptionally challenging environment."

ADNOC, Abu Dhabi's state oil company, is one of the world's

largest energy producers and exports crude oil, natural gas and

refined products worldwide.