Egyptian Foreign Minister Badr Abdelatty expressed on Saturday to his Lebanese counterpart Abdallah Bou Habib his country's "deep concern over the dangerously increasing pace of escalation" in the region.
Abdelatty affirmed, in a phone call with Bou Habib, Egypt's support to Lebanon in confronting the threats surrounding it, the Egyptian foreign ministry said in a statement.
Wednesday's assassination of Hamas leader Ismail Haniyeh in Tehran has aroused fears of direct conflict between Tehran and its arch-enemy Israel in a region shaken by Israel's war in Gaza and a worsening conflict in Lebanon.
Revenge for the killing of the Hamas leader will be "severe and at an appropriate time, place, and manner", the Iranian Revolutionary Guards said in a statement, blaming the "terrorist Zionist regime" of Israel for his death.
Iran and Hamas have accused Israel of carrying out the strike that killed Haniyeh hours after he attended the inauguration of Iran's new president.
The assassination of a Hezbollah commander in Lebanon has also the region holding its breath for retaliation against Israel on either front, or both. Calls for people to leave Lebanon sharpened as flight activity there cooled.