The police say the fighting broke out after Israeli troops entered Qabatiya in northern West Bank on Thursday. They say a Palestinian rock-thrower was killed.
The Israeli military says troops were confronted with dozens of rock-throwing Palestinians in Qabatiya and responded with riot control munitions. It says it's investigating the incident.
Separately, the Islamic militant group Hamas says Israel arrested four of its senior members in Ramallah.
Several Palestinians have been killed in fighting with Israeli soldiers seeking to arrest militants in the West Bank in recent months.
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