IRBIL: Iran’s Revolutionary Guards claimed responsibility for a dozen ballistic missiles that struck Iraq’s northern Kurdish regional capital of Irbil in the early hours of Sunday, Iran’s state media reported, adding that the attack was against Israeli “strategic centers” in Irbil.

The missile attack comes as talks to revive the 2015 Iran nuclear deal face the prospect of collapse after a last-minute Russian demand forced world powers to pause negotiations for an undetermined time despite having a largely completed text.

The missiles caused only material damage and one civilian was injured, the Kurdish interior ministry said. An Iraqi security official told Reuters that the missiles were manufactured in Iran.

Iran’s Revolutionary Guards released a statement taking responsibility for the missile attack against Israeli “strategic centers” in Irbil, Iran’s state media reported.

“Any repetition of attacks by Israel will be met with a harsh, decisive and destructive response,” the Revolutionary Guard said in the statement.

A US official blamed Iran for the attack earlier on Sunday but did not give further details. A Kurdish spokesperson for the regional authorities said that Sunday’s attack only targeted civilian residential areas, not a foreign base and called on the international community to carry out an investigation.

Separately, a US State Department spokesperson called it an “outrageous attack” but said no Americans were hurt and there was no damage to US government facilities in Irbil.

“No US facilities were damaged or personnel injured, and we have no indications the attack was directed at the United States,” the State Department’s spokesman Ned Price said in a statement.

Price called on Iran to “immediately cease its attacks, respect Iraqi sovereignty, and halt its interference in Iraq’s internal affairs.”

“The United States stands with our Iraqi partners, including in the Kurdistan Region, and will help our partners in the region defend themselves,” he added.

US forces stationed at Irbil’s international airport complex have in the past come under fire from rocket and drone attacks that Washington blames on Iran-aligned militia groups, but no such attacks have occurred for several months.

Asked about Sunday’s attack, Israel’s military said it did not comment on reports in the foreign press and the prime minister’s office declined to comment.

The last time ballistic missiles were directed at US forces was in January 2020 — an Iranian retaliation for the US killing earlier that month of its military commander Qassem Soleimani at Baghdad airport.

No US personnel were killed in the 2020 attack but many suffered head injuries.

Iraq and neighboring Syria are regularly the scene of violence between the United States and Iran. Iran-backed Shiite Islamist militias have attacked US forces in both countries and Washington has on occasion retaliated with air strikes.

An Israeli air strike in Syria on Monday killed two members of Iran’s Revolutionary Guards Corps (IRGC), Iranian state media said last week. The IRGC vowed to retaliate, it said. Israel has not confirmed it carried out the strike.

A Kurdish spokesperson for the regional authorities said there were no flight interruptions at Irbil airport.

Residents of Irbil posted videos online showing several large explosions, and some said the blasts shook their homes. Reuters could not independently verify those videos.

Iraq has been rocked by chronic instability since the defeat of Daesh in 2017 by a loose coalition of Iraqi, US-led and Iran-backed forces.

Since then, Iran-aligned militias have regularly attacked US military and diplomatic sites in Iraq, US and many Iraqi officials say. Iran denies involvement in those attacks.