A Palestinian man reacts after learning that his brother was killed by Israeli forces in the northern Gaza Strip March 1, 2008. Israeli forces killed 12 Palestinians in clashes in the Gaza Strip on Saturday, hospital staff said, as fighting escalated in the Hamas-ruled territory after a cross-border rocket attack killed an Israeli civilian.

Doctors treat a Palestinian girl who medics said was wounded by Israeli forces in the northern Gaza Strip March 1, 2008. Israeli forces killed 12 Palestinians in clashes in the Gaza Strip on Saturday, hospital staff said, as fighting escalated in the Hamas-ruled territory after a cross-border rocket attack killed an Israeli civilian.

Medics carry a Palestinian man after he was wounded by Israeli forces in the northern Gaza Strip March 1, 2008. Israeli forces killed 12 Palestinians in clashes in the Gaza Strip on Saturday, hospital staff said, as fighting escalated in the Hamas-ruled territory after a cross-border rocket attack killed an Israeli civilian.

A Palestinian woman reacts after her son was killed by Israeli forces in the northern Gaza Strip March 1, 2008. Israeli forces killed 12 Palestinians in clashes in the Gaza Strip on Saturday, hospital staff said, as fighting escalated in the Hamas-ruled territory after a cross-border rocket attack killed an Israeli civilian.