TEHRAN: Iran has arrested 26 foreign nationals over their alleged involvement in a deadly attack claimed by the militant Islamic State group on a Shia shrine, the intelligence ministry said on Monday.

At least 13 people were killed on October 26 in an armed attack on the Shah Cheragh mausoleum in Shiraz, according to an official toll.

`The intelligence ministry has identified and arrested all agents involved in the terrorist operation in Shiraz,` said a statement published on the ministry`s website.

According to the statement, the 26 `takfiri terrorists` are from Azerbaijan, Tajikistan and Afghanistan. The term takfiri in Iran and in several other countries refers to radical Sunni Islamist groups.

`These terrorists were arrested in the provinces of Fars, Tehran, Alborz,Kerman, Qom and Razavi Khorasan` as well as along Iran`s `eastern border`, the ministry added.

The shooting at the shrine considered the holiestShia site in southern Iran came on the same day that thousands of people across the country paid tribute to Mahsa Amini, 40 days after her death in police custody.The perpetrator of the attack in Shiraz, identified by the intelligence ministry as Sobhan Komrouni, died of wounds sustained while he was being arrested. The ministry said he was `a Tajik national` known as Abu Aisha.

It added that the main coordinator of attacks in Iran, an Azeri national, was also arrested, having entered the country through Tehran`s international airport from Baku.

He had been in contact with an IS network abroad after arriving in Tehran, it added.

On October 31, the ministry announced that several others had been arrested, including an `operational support element` identified Monday as Mohammed Ramez Rashidi, an Afghan national.

Remarks last month by President Ebrahim Raisi appeared to link the Shiraz attaclc, one of the country`s deadliest in years, with the protests and `riots` following Amini`s death.He had vowed `a severe response` to the attack.

Fire at oil facility In a separate incident in the same city, Iran`s Islamic Revolutionary Guard Corps said Sunday its forces had killed an `element hostile to the revolution` after an attack on a military base in Mahshahr.

A fire that broke out at an oil export facility in southern Iran was brought under control without causing any damage, according to local media.

`A fire has occurred in an open oil channel leading to the export port in the city of Mahshahr,` Fars news agency reported after the Sunday incident. Thick smoke filled the sky over the port, the agency stated.

Mahshahr is located in Khuzestan, an oil-rich province bordering Iraq.

The Tasnim agency described the fire as `minor`, adding that there was no `human or financial loss`.

A security manager at the port, quoted by the Rokna news website, said the fire was caused by technical failure in a lighting system near the open channel. Mahshahr Governor Fereydoun Bandari said `firefighters prevented the fire from spreading to oil tanl(s at the export port`, according to Fars. The cause of the incident is under investigation, he added.-AFP