Israel has invaded southern Lebanon in a dramatic escalation of its conflict with Hezbollah. The Israeli ground operation began on Monday night, days after an air strike killed the leader of the Iran-backed armed group, Hassan Nasrallah.

The conflicts in Lebanon and Gaza threaten to spiral into a regional war. Iran’s firing of around 180 missiles at Israel on October 1st did relatively little damage owing to Israel’s missile-defence systems and American military assistance. Just one person died, in the West Bank, from falling shrapnel.

Israel killed at least 558 people, including 50 children and 94 women, in air strikes it conducted across Lebanon since September 23. At least 1,835 Lebanese people were wounded in the attacks, the country’s Ministry of Public Health said.