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Majdi Mohammed, Associated Press
Israeli soldiers gather after Palestinian Rafeq Ahmad al-Taj, 21, was shot and killed by an Israeli policeman after he stabbed a policeman, in the village of Beita south of the West Bank city of Nablus, Aug. 15, 2015. Israeli police spokeswoman Luba Samri said al-Taj approached officers conducting a security check and stabbed one in the back with a knife, moderately wounding him. An officer nearby opened fire and killed al-Taj.

JERUSALEM — Israeli military and police shot two Palestinians, one fatally, after separate stabbing attacks on security forces in the West Bank on Saturday, authorities said.

Police spokeswoman Luba Samri said a Palestinian approached officers conducting a routine security check and stabbed one in the back with a knife, moderately wounding him. An officer nearby opened fire and killed the attacker, identified by doctors at Rafidia hospital in Nablus as 21-year-old Rafeq Ahmad al-Taj.

Earlier in the day, a Palestinian was shot by Israeli troops after asking soldiers at a West Bank border crossing for a glass of water, then stabbing the soldier who turned to get it, the military said.

The soldier was treated at the scene and the Palestinian was taken to a hospital with a light shoulder wound, the military said.

Israeli media said the Palestinian told investigators he carried out the attack after arguing with his father. Channel 10 TV identified him as a 19-year-old from a nearby village and cited security officials as saying he acted independently from any militant group.

The attacks came as Israelis and Palestinians follow the fate of a Palestinian hunger striker who slipped into unconsciousness a day earlier after a 60-day fast to protest his detention without charge. Mohammed Allan, 30, remained hospitalized in southern Israel.

Allan was arrested in November 2014 and detained for two six-month periods under a measure called administrative detention that allows authorities to hold detainees for months without charges.

Israel says the practice is a necessary tool to stop militant activity. Authorities said Allan was being held for his activities in Islamic Jihad, a group which has carried out numerous violent attacks against civilians.

Palestinian prisoners have held rounds of hunger strikes in recent years, sparking tension in the streets.

Associated Press writer Mohammed Daraghmeh in Ramallah, West Bank contributed to this report.