There has been an increase in killings of and attacks against Palestinians by settlers and security forces in the occupied West Bank in recent weeks, the United Nations human rights office said on Tuesday.

U.S. citizen Sayafollah Musallet, 20, also known as Saif, was killed in the incident on Friday evening in Sinjil, north of Ramallah.

A 20-year-old American was allegedly beaten to death by Israeli settlers while visiting family in the West Bank, according to Palestinian health officials and his family.