Hezbollah chief says Israel 'crossed all red lines' in device blasts

Lebanon's powerful Hezbollah chief says that Israel has crossed all red lines after exploding devices used by group members killed 37 people and wounded more than 2,900 people.

The blasts, spanning two days, have dealt a major blow to the Iran-backed militant group, which blames its arch-foe Israel for the attacks on its communication systems and vows revenge.

Israel has not commented on the unprecedented attacks.