DUBAI, Sept. 23 (Xinhua) -- The United Arab Emirates (UAE) Minister of State for Foreign Affairs Anwar Gargash on Sunday rejected accusations by Iran that the U.S. Gulf allies were responsible for the attack in the Islamic republic on Saturday.

"The official incitement against the UAE by Iranian officials is regrettable ... it is clear that Tehran's accusations are unfounded," said Gargash on his Twitter account.

On Saturday morning, four armed men attacked a military parade marking the anniversary of the Iran-Iraq war in 1980-1988 in Iran's southwestern city of Ahvaz.

The attack killed at least 29 people, including two of the militants.

Iran's Foreign Minister Mohammad Javad Zarif said that the United States and its regional allies were responsible for the attack.

Ahvaz National Resistance, an Iranian ethnic Arab opposition movement, and the Islamic State claimed responsibility for the attack.