Two Palestinians have been killed in an Israeli air strike on Gaza.<br /><br />One of the men had been blamed for firing rockets across the border during last week’s funeral of former Israeli Prime Minister Ariel Sharon.<br /><br />Both victims had been been sitting in a parked car in the town of Beit Hanoun when they were hit by a missile.<br /><br />The air strike could complicate efforts by Egypt, which is a frequent mediator between Israel and Gaza, to talk various Palestinian factions into a truce.<br /><br />In the last month, despite a previous lull there have been some 20 Palestinian rocket or mortar launches.<br /><br />The Israeli government has vowed to take pre-emptive action against such attacks.