Israel's military says it launched a wave of pre-emptive air strikes against Hezbollah targets in Lebanon. It said it hit more than two-hundred sites, after detecting Hezbollah preparations for strikes on Israeli territory. Hezbollah says it's started "phase one" of an attack on Israel - in retaliation for the killing of one of its leaders last month.

We'll have analysis of what's happened so far, look at what's expected in the coming hours and examine what this could mean for war in the wider region.