Top Iranian officials will meet the representatives of Iran’s regional allies from Lebanon, Iraq and Yemen to discuss potential retaliation against Israel after the killing of the Hamas leader in Tehran, five sources told Reuters.

The region faces a risk of widened conflict between Israel, Iran and its proxies after Ismail Haniyeh’s assasination in Tehran on Wednesday and the killing of Hezbollah’s senior commander on Tuesday in an Israeli strike on the outskirts of the Lebanese capital Beirut.