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.

We demand the United States government do something about it. I don’t want his death to go in vain,” said Kamel Musallet, who flew from the US to bury his son.

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