Palestinian protester hang the Palestinian Flag on a Power line during a Hamas demonstration at the Karni crossing between Israel and Gaza. Israeli troops opened fire into the crowd of protesters, killing a 22-year-old man and wounding 16, including 3 children, a Gaza health official said. At another border crossing earlier on Thursday an Islamic Jihad suicide bomber driving a truck loaded with at least four tons of explosives tried to ram a crucial crossing between Gaza and Israel, militants said, killing himself but causing no other casualties.