Mideast tensions soar as fresh Israeli strike on Lebanon kills four Hezbollah fighters

Four Hezbollah fighters have reportedly been killed in an Israeli strike in the south of Lebanon, threatening to ignite already-fraught tensions. This comes after the killing of a Hezbollah commander and the death of Hamas' political chief Ismail Haniyeh. Lebanon's foreign minister has insisted that the government is trying to prevent an escalation of the conflict. Iran has blamed Israel for the attack on the Hamas leader, vowing "severe" retaliation, but Israel has not claimed responsibility for the assassination. Sarah Coates reports.