The number of people killed in two days of Israeli airstrikes in Lebanon has risen to 558, with some 1,835 injured, Lebanese Health Minister Firas Abiad said on Tuesday. Some 50 children were among the dead, he said. The injured were being treated at over 54 hospitals and medical centres across Beirut and southern Lebanon, said Abiad, who is health minister in a caretaker government. The strikes came as the war in Gaza between Israel and the Palestinian Islamist group Hamas approaches its first anniversary. The Islamist militia Hezbollah, which is based in Lebanon, has vowed to support Hamas i…