A Palestinian was killed and at least 20 were wounded in clashes during an Israeli operation in the West Bank city of Nablus, medical sources said.
Palestinians have attacked Israeli forces during raids in the West Bank
Two Israeli soldiers were also injured by a bomb during the raid.
There have been several raids in the West Bank since an Islamic Jihad suicide bomber killed five Israelis in Netanya earlier this month.
Israeli forces entered the city at dawn and were attacked by youths throwing stones and, later, by gunmen.
A 22-year old Palestinian, Hussam Sakir, was shot in the head while throwing stones near the Balata refugee camp on the outskirts of the city, medical sources said.
An Israeli army spokeswoman told the AFP news agency that Israeli troops had fired live rounds, but not at protesters.
"There have been numerous incidents of Palestinian gunmen shooting at the forces. In some cases the forces returned fire," she said.
"In addition there have been numerous incidents of Palestinians throwing rocks, but the forces have not returned fire in those instances."