GAZA CITY: Israel’s military martyred a commander of Palestinian militant group Islamic Jihad in a strike on his home in the Gaza Strip on Tuesday, prompting retaliatory rocket fire and fears of a severe escalation in violence. Israel launched air strikes in response to barrages of retaliatory rocket fire, with the Gazan health ministry reporting four people had been killed and 25 wounded in the Palestinian enclave. Israel said it targeted Islamic Jihad training and weapons manufacturing sites as well as rocket-launching squads in the raids. The rocket fire into Israel caused damage and a number of injuries, with at least one rocket hitting a house and another narrowly missing passing cars on a highway. A factory in the city of Sderot was also hit, sparking a fire there. Israeli medics said they had treated 39 people.