An IAF helicopter attacked a roadblock near the home of Hamas Prime Minister Ismail Haniyeh Thursday afternoon, killing one person and wounding four others, Palestinian officials said. The attack took place about 150 meters from Haniyeh's home in the Shati refugee camp in Gaza City. Haniyeh, who has been in hiding for several weeks, fearing Israeli assassination, was not believed to be in the area. The attack appeared to be aimed at sending a message to Hamas since the area is not used to launch rockets. Israel has threatened to begin targeting Hamas leaders because of the ongoing rocket fire from other parts of Gaza. The army had no immediate comment.