The head of police intelligence in Iran’s southern port city of Bandar Lengeh has been killed by a suicide bomber on Saturday.

According to a report by Iranian state media, the unidentified bomber was also killed while another police officer sustained injuries in the attack outside a police headquarters in the port city.

The attack came days ahead of the anniversary of two suicide bombings on Jan. 3 in which nearly 100 people were killed at a memorial in southeastern Iran for top Revolutionary Guard Corps commander Qassem Soleimani, who was assassinated in Iraq in 2020 by a U.S. drone.

U.S. officials justified the Soleimani strike saying it was necessary to stop an “imminent attack”, though later clarifying the legal justification of the action as being taken “in response to an escalating series of attacks…to protect United States personnel, to deter Iran from conducting or supporting further attacks…and to end Iran’s strategic escalation of attacks…”

Some experts, including the United Nations special rapporteur on extrajudicial, summary or arbitrary executions, considered the assassination as a likely violation of international law as well as U.S. domestic laws. Iran called the strike an act of “state terrorism”.