Iran has arrested dozens of suspects in the killing of Hamas leader Ismail Haniyeh, The New York Times reports.

According to media reports, high-ranking officials and hotel staff are among those detained. Iran believes that members of the “Mossad assassination squad” are still in the country.

Iran is actively searching for those involved in the assassination of Hamas leader Ismail Haniyeh and has made dozens of arrests, The New York Times reported on August 3, citing Iranian sources. Those detained include intelligence officers, military officials and hotel staff in Tehran.

A Hamas leader was killed in a secure compound in the capital by a bomb planted in a room. Iran and Hamas have blamed Israel, which denies responsibility. A special unit of the IRGC is investigating, showing how deeply the incident has shaken Iran's leadership.

Iranian agents have searched the house and quarantined all its employees. Some of the employees have been arrested and their electronic devices, including personal phones, have been confiscated. A separate team of agents is interrogating intelligence officers and military personnel responsible for protecting the capital, and several have been arrested.

Iran is seeking to apprehend members of the “Mossad assassination squad” on the assumption that they are still in the country. Security protocols for officials have also been revised, equipment upgraded and some have been relocated.

Recall that at first there was talk of a rocket attack on a guest house guarded by the IRGC, but it turned out that the Hamas leader was killed by a bomb planted approximately two months earlier. On August 2, The Telegraph reported on an operation organized by Israeli intelligence Mossad, which was already the second attempt to kill Haniyeh.