The UN Security Council will hold an emergency meeting on Wednesday after Hamas said its political leader Ismail Haniyeh was killed by an Israeli strike on Iran's capital, the Russian presidency of the council said, Paralel.Az reports citing Barron's.

The meeting, requested by Iran and supported by representatives of Russia, China and Algeria, is scheduled for 4:00 pm (2000 GMT), said a spokesman for the Russian presidency, which holds the rotating leadership of the council.

Separately, UN chief Antonio Guterres denounced the attacks on Tehran as well as Beirut as a "dangerous escalation," after an Israeli strike on Tuesday evening also killed top Hezbollah commander Fuad Shukr in Lebanon.

"The Secretary-General believes that the attacks we have seen in South Beirut and Tehran represent a dangerous escalation at a moment in which all efforts should instead be leading to a ceasefire in Gaza" and "the release of all Israeli hostages," his spokesman Stephane Dujarric said in a statement.

In a letter to the Security Council, Iran's UN envoy Amir Saeid Iravani called on members to "condemn unequivocally and strongly the acts of aggression and terrorist attacks" by Israel on the sovereignty of Iran, Lebanon and Syria.