The day after Hamas chief`s death The Telegraph reported that Israeli Mossad agents, working with Iranian Revolutionary Guards, planted explosives in the guesthouse where Haniyeh was staying. The plan to kill him during a funeral was canceled due to the large crowd, so the agents planted explosives in three rooms instead. If true, this would be a significant security breach for Iran. However, the Israeli Defense Forces deny involvement in attacks around that time, except for a separate killing in Beirut. Earlier, The New York Times reported that Haniyeh was killed by a remote-controlled bomb that was smuggled in two months prior. Iran has arrested over two dozen people, including high-ranking officials, in connection with his death.