The leader of the Lebanese militant group Hezbollah has spoken in a rare public address following the killing of Hamas deputy leader in Beirut yesterday.
Israel is yet to claim responsibility for the death, but the Hezbollah leader is confident it is an example of “flagrant Israeli aggression".
Israel has vowed to go after senior Hamas leaders abroad as much of the Middle East suspects they were behind the killing of Saleh al-Arouri.
Hezbollah chief Sayyed Hassan Nasrallah has warned Israel there will be a response to the attack.
He added that Hezbollah "cannot be silent" and that the attack was a "major dangerous crime".