A Palestinian broke into a home in a Jewish settlement in the occupied West Bank on Friday and stabbed four Israelis, killing three of them, the Israeli army said.
The attack in Neve Tsuf, north of Ramallah, came after a day of clashes between Palestinian protesters and Israeli forces over new security measures at a highly sensitive Jerusalem holy site.
Three Palestinians were killed and hundreds wounded in the clashes in Jerusalem and the West Bank.
The attacker at the settlement was a 19-year-old Palestinian supporter of Hamas, the Islamist movement that runs the Gaza Strip, according to an Israeli military official.
He jumped the fence of the settlement before breaking into the house, where he stabbed the Israelis during a Sabbath dinner, the army official said.
According to the official, a grandfather and two of his children died, while the grandmother was wounded. The official provided no further details