Israeli troops raided a Palestinian hospital in the West Bank city of Nablus on Sunday, apparently looking for a wanted man wounded in an earlier operation, Palestinian witnesses and doctors said.

The soldiers shot stun grenades and tear gas as they stormed the hospital, and once inside, put the doctors and nurses on one floor, they said.

Five people were injured, doctors said, including three hurt by grenades and tear gas, one hit by an army jeep, and a fifth hit by Palestinian gunmen who opened fired on the troops.

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The soldiers fired the grenades and tear gas at Palestinian youths who threw rocks at them, the witnesses said.

The troops left the hospital after two hours without arresting anyone, the military said, without providing further details.

The apparent target of the Israeli operation was a fugitive wounded in an Israeli raid on the nearby Balata refugee camp two weeks ago, the witnesses said. Members of his militant faction said he was spirited out of the hospital just before the troops arrived.