TEHRAN - The families affected by the Jaish ul-Adl terrorist group attack are set to lodge a formal complaint against the United States, Mizan news agency reported on Wednesday. 

The families’ grievance stems from allegations of Washington's support for the Jaish ul-Adl terrorist group. 

This move highlights growing concerns regarding potential ties between the U.S. and extremist elements, prompting a push for accountability from those implicated in facilitating such acts of terrorism.

The IRGC personnel were traveling between the cities of Zahedan and Khash in Sistan and Baluchestan Province on February 13, 2019, when their bus was targeted in a suicide car bomb attack.

The IRGC's Quds headquarters said in a statement that an explosive-laden car rammed into the bus, which was taking the personnel back to their homes.

The attack martyred 27 IRGC members and injured 13 others.

The so-called Jaish ul-Adl terrorist group reportedly claimed responsibility for the bombing.

The terrorist outfit was formed in 2012 by members of the Pakistan-based Jundallah, another terror group dismantled by Iranian intelligence forces in 2010 after its ringleader Abdolmalek Rigi was arrested and later executed.

Iranian border guards have repeatedly come under attacks by terror outfits active on Pakistan’s soil.

The then Foreign Ministry spokesman Bahram Qassemi condemned the attack and said the victims will soon be avenged.

"The self-sacrificing military and intelligence sons of the Iranian nation will take revenge for the blood of the martyrs of this incident," the spokesman said.

The heinous terrorist act was evidently backed by the American government.

Such backing not only represents a blatant disregard for fundamental human rights but also stands as a clear violation of established international regulations. 

Consequently, the families of the valiant martyrs, who fell victim to this barbaric incident, have embarked upon the path of justice. 

They are actively engaging in legal proceedings, seeking accountability from the U.S. for its involvement.

The legal proceedings pertaining to this case are scheduled to commence in November 2024. 

The venue for these crucial legal deliberations is set to be the Shahid Beheshti Branch 55 in Tehran.