The Foreign Office (FO) on Saturday said it was in touch with Iranian authorities over the “horrifying and despicable” killing of Pakistani nationals by terrorists in the neighbouring country.

Iran’s Mehr news agency reported earlier today that “according to witnesses, this morning unknown armed men killed nine non-Iranians in a house in the Sirkan neighbourhood of Saravan city” in the Sistan-Baluchistan province.

The agency added that no group or individuals had claimed responsibility.

The Baluch rights group Haalvash said on its website that the victims were Pakistani labourers, who lived at an auto repair shop where they worked. Three others were wounded, it said.

The province’s deputy governor, Alireza Marhamati, told the official news agency IRNA that according to survivors of the incident, “three armed people shot at the foreigners after entering their residence and fled the scene.”

Marhamati confirmed the toll of nine deaths and said three others were wounded.

A statement issued by FO spokesperson Mumtaz Zahra Baloch in response to media queries on the matter said: “It is a horrifying and despicable incident and we condemn it unequivocally. We are in touch with Iranian authorities and have underscored the need to immediately investigate the incident and hold to account those involved in this heinous crime.”

She said Pakistan’s consul in Zahedan was en route to the hospital where the injured were being treated and would reach in a “few hours due to long distances and security imperatives involved”.

Baloch said the consul will also meet local authorities and “impress upon them the urgent need for strong action against the perpetrators of this crime”.

“We are fully seized of this grave matter and are taking all necessary measures in this regard. The embassy will do its best to repatriate dead bodies at the earliest,” she said.

“Such cowardly attacks cannot deter Pakistan from its determination to fight terrorism,” the FO spokesperson added.

Interim Foreign Minister Jalil Abbas Jilani termed the incident as an “attempt to spoil relations between Pakistan and Iran by our common enemies”.

Pakistan’s envoy in Tehran, Ambassador Muddasir Tipu, said he spoke to two of three injured Pakistanis, adding they were “stable and being well treated”.

Earlier, he said: “Deeply shocked by horrifying killing of nine Pakistanis in Saravan. Embassy will extend full support to bereaved families. Counsel Zahidan is already on his way to incident site and hospital where injured are under treatment. We called upon Iran to extend full cooperation in the matter.”

Tipu told Dawn.com the count of injured was three and he was overseeing the entire process himself.

He said he was in touch with Pakistani authorities as well.

The development occurred a day after Mudassir arrived in Tehran while his Iranian counterpart landed in Islamabad, signalling the full restoration of diplomatic relations between the two neighbouring countries following a brief disruption in ties after Iran conducted strikes on alleged terrorist targets inside Pakistani territory.

Earlier in the day, Mudassir said he was honoured to present his credentials to Iranian President Ebrahim Raisi.

Meanwhile, Iranian Foreign Minister Hossein Amir-Abdollahian will reach Islama­bad on Sunday at the invitation of FM Jilani.

Last week, Iran had laun­ched attacks in Pakistan targeting what it described as bases for the militant group Jaish al-Adl in the border town of Panjgur in Balochistan, Iranian state media reported, prompting strong condemnation from Islamabad and downgrading of diplomatic ties.

Less than 48 hours later, Pakistan struck “hideouts used by terrorist organisations namely Balochistan Liberation Army (BLA) and Balochistan Liberation Front (BLF)” in Iran’s Sistan-Baluchestan province, in an intelligence-based operation codenamed ‘Marg Bar Sarmachar’.

Iran’s IRNA news agency had reported that nine people were killed in the attack targeting a village in the city of Saravan, with Iranian Interior Minister Ahmad Vahidi saying all the dead “were foreign nationals”. Iran had condemned strikes and summoned Pakistan’s charge d’affaires “to protest and request an explanation from the Pakistani government”.

In Islamabad, the escalation had prompted a high-level meeting of Pakistan’s premier authority on security and foreign policy, the National Security Committee. It was chaired by caretaker Prime Minister Anwaarul Haq Kakar with cabinet members, the chairman of the Joint Chiefs of Staff Committee, the chiefs of the Army, Navy and Air Staff, and other heads of intelligence in attendance.

During the hours-long meeting on Friday, the NSC had ratified the move towards reducing tensions between Pakistan and Iran and underscored a commitment to addressing mutual security concerns.

“The forum (NSC) expressed that Iran is a neighbourly and brotherly Muslim country, and existing multiple communication channels between the two countries should be mutually utilised to address each other’s security concerns in the larger interest of regional peace and stability,” a statement issued by the prime minister’s office after the meeting said.

The NSC hoped that both countries “would mutually be able to overcome minor irritants through dialogue and diplomacy and pave the way to further deepen their historic relations” but at the same time emphasised that any violation, under any pretext, would be met with the state’s full force.

That sentiment was reciprocated by Tehran, whose foreign ministry, in a statement later that day, had said Iran “adheres to the policy of good neighbourliness and brotherhood between the two nations and the two governments”.

These exchanges had subsequently set the stage for a phone conversation between FM Jilani and his Iranian counterpart on Friday.

The two foreign ministers had underscored the importance of collaboration and synchronising efforts at the operational level, with a specific focus on counterterrorism and other mutual concerns. They also committed to de-escalating tensions.

Furthermore, the foreign ministers had deliberated on the reappointment of each country’s ambassadors to their respective capitals, signalling a move towards restoring diplomatic normalcy.

Jilani had also invited Amira­bdollahian to visit Islamabad. The Iranian foreign minister, according to the Iranian side, had emphasised that the assurances about security and military cooperation should be seriously pursued.

Additional input from AFP and Reuters.

Additional reporting by Nadir Gurmani.