The UN Security Council have called an emergency session at Iran's request after the killing of Hamas political bureau chief Ismail Haniyeh in Tehran, the Russian presidency of the council announced.
A council spokesperson said Iran's request to hold the session had been supported by Russia, Algeria and China.
Hamas announced on Wednesday, the assassination of its political bureau chief, Ismail Haniyeh, following an airstrike on his residence in Tehran, after he participated in the inauguration ceremony of the new Iranian president, Masoud Pezeshkian.
For its part, the Iranian Revolutionary Guard said in a statement that it is studying the dimensions of the incident of Haniyeh's killing in Tehran and will announce the results of the investigation later.
The Iranian mission to the United Nations confirmed on Wednesday that the response to the assassination of Hamas political bureau chief Ismail Haniyeh in Tehran will be through special operations.

Man charged with 10 counts of attempted murder after knife attack on UK train
Tanzania's Hassan sworn into office after deadly election violence
Powerful 6.3 quake kills at least 20 in Afghanistan, hundreds injured
Turkey set to call for action on Gaza as soon as possible, source says
