The political head of Hamas was killed early on Wednesday in Tehran where he was attending the inauguration of Iran's president Masoud Pezeshkian.

"Jordan's foreign minister Ayman Safadi is traveling to Tehran today (Sunday) to meet and exchange views with Iranian officials on regional and international issues," the official IRNA news agency said.

Safadi will be meeting with Iran's acting foreign minister Ali Bagheri, it added.

The Jordanian foreign ministry confirmed the trip and said Safadi would also deliver a message from King Abdullah II to the Iranian president on "the situation in the region and bilateral relations".

Iran has held talks with multiple Arab countries since Haniyeh's killing.

Tehran repeatedly reaffirmed its "inherent right" to take action against Israel.

Israeli Prime Minister Benjamin Netanyahu says his country is at "a very high level" of preparedness for any scenario -- "defensive and offensive."

Haniyeh's killing came hours after Israel killed a senior commander of the Lebanese, Hezbollah group, Fuad Shukr, which Israel blamed for a deadly weekend rocket strike on the Israeli-occupied Golan Heights.

Iran's Revolutionary Guards have said Haniyeh was killed by a "short-range projectile" launched from outside his accommodation in northern Tehran.

Israeli military spokesman Daniel Hagari had earlier told journalists "There was no other Israeli aerial attack... in all the Middle East" on the night Shukr was killed in in Lebanon.

The dual killings are the latest of several major incidents that have inflamed regional tensions during the Gaza war, which has drawn in Iran-backed militant groups in Syria, Lebanon, Iraq, and Yemen.