TEHRAN – Iran summoned diplomats from Denmark, the Netherlands and Britainover an attack on an army parade which killed at least 29 people near theIraqi border, state-run media said on Sunday.

The Dutch and Danish ambassadors and the British charge d’affaires were”informed of Iran’s strong protests over their respective countries’hosting of some members of the terrorist group” which carried out theattack, official news agency IRNA said.

Daesh has claimed responsibility for the rare assault, which saw gunmenspray a crowd with gunfire in the southwestern city of Ahvaz on Saturday.

Iranian officials have blamed “a foreign regime” backed by the UnitedStates.

Iran called on Denmark and the Netherlands to extradite the attack’s”perpetrators and their accomplices” to stand trial in the Middle Easterncountry, IRNA said, citing foreign ministry spokesman Bahram Qasemi.

“It is not acceptable that the European Union does not blacklist members ofthese terrorist groups as long as they do not perpetrate a crime on…European soil,” Qasemi was quoted as saying.

The British charge d’affaires, summoned in the ambassador’s absence, wastold it was unacceptable “that the spokesman for the Al-Ahvazi terroristgroup was allowed to claim responsibility of the attack through aLondon-based TV network”, according to the news agency.

He was referring to a group Tehran claims is backed by its arch-rival SaudiArabia.

Iran’s President Hassan Rouhani has vowed a “crushing” response to theattack in the province of Khuzestan, which borders Iraq and has a largeethnic Arab community.

The province has seen separatist violence in the past that Iran has blamedon its regional rivals.

Daesh said via its propaganda mouthpiece Amaq that “Islamic State fightersattacked a gathering of Iranian forces” in Ahvaz.

The SITE Intelligence Group, which monitors jihadist websites, reportedthat IS said the attack was in response to Iranian involvement in conflictsacross the region. – APP/AFP