Israel has carried out one of its deadliest air strikes in years. At least nine people have been killed in an attack on Palestinian militants in Gaza. Two children are among the dead. It is unclear how many of the other fatalities were civilians. Around 20 people have been injured. The van was carrying rockets apparently destined for a launch against Israel.The Islamic Jihad group said some of its members lost their lives in the blast. Reports are coming in of another air strike in the northern Gaza Strip. The attacks come against the backdrop of a surge in rockets being fired in the direction of southern Israel from Gaza.