Iran's Islamic Revolution Guard Corps (IRGC) said the attack was aimed at "specific targets".
The IRGC said that Ismail Haniyeh and one of his bodyguards were killed after their residence was targeted in Tehran.
As tensions continue to rise, the Israeli public remains on high alert, bracing for the possibility of further incidents.
President Joe Biden and other top US leaders had been warning for days that America would strike back at the militias, and they made it clear it wouldn't be just one hit but a "tiered response" over time.
Chief of Staff of the Iranian Armed Forces, Sardar Bagheri, has said that the military operation against Israel has 'concluded' from Tehran's side, while issuing warning that if the United States helps Israel in their possible next actions, their bases will 'not have any security', and will be dealt with, according to CNN.
Official sources in India said it is in touch with Iran to secure the release of 17 Indians.
Hours after an Iranian military commander claimed to have located the crash site of the helicopter carrying Iranian President Ebrahim Raisi, conflicting reports emerged as the head of Iran's Red Crescent Society, Pir Hossein Koulivand, said that rescue teams are still searching the area for the accident site.
The United States, Canada and the United Nations have condemned the Iranian air attack on Israel, with President Joe Biden reaffirming America's 'ironclad commitment' to the Jewish nation and vowing to convene a meeting of the G-7 leaders on Sunday to develop a coordinated response to the brazen assault.
Nine people were on the helicopter that crashed in northwest Iran on Sunday, including three officials, an imam, and flight and security team members, as reported by Tasnim news.
The United States on Thursday (local time) evaded a question on whether Pakistan held prior consultations with Washington, DC before conducting retaliatory air strikes on Iran.
The United States military forces on Thursday (US local time) conducted self-defence strikes on two facilities in eastern Syria used by Iran's Islamic Revolutionary Guard Corps (IRGC) and affiliated groups.
The 24-year-old man charged with the attempted murder of Salman Rushdie has denied being in contact with Iran's Revolutionary Guard Corps and said that he acted alone when he stabbed the Mumbai-born author, whom he disliked for being 'disingenuous'.
Authorities were still looking into Matar's nationality and his criminal records, if any.
Trump said the sanction will deny the Iranian Supreme leader access to financial instruments.
The ballistic missile launch was the first by Iran since Trump became President.
Foreign Minister Mohammad Javad Zarif tweeted that the attack near the Iraqi border was carried out by 'terrorists recruited, trained, armed & paid by a foreign regime'.
Pakistan is making efforts at multiple levels for the Taliban government to have a soft landing, observes Ambassador M K Bhadrakumar.
In the Middle East, which is already coping with the Qatar-Saudi Arabia tensions, comes another pressure point.