The Israeli military has warned people to evacuate communities in southern Lebanon that are outside a UN-declared buffer zone, signalling that it may widen a ground operation launched earlier this week against the Hezbollah militant group. That announcement comes as a series of massive blasts were heard in the capital Beirut in the early hours of Friday morning. Lebanon’s state-run National News Agency reported more than 10 consecutive airstrikes in the capital but it was not immediately clear what was targeted or if there had been any casualties. Israeli forces said they had struck around 200…