A Palestinian American man was beaten to death by settlers in the Israeli-occupied West Bank, says the Palestinian Health Ministry, prompting his family to demand that the U.S. lead an investigation.

Israeli settlers killed a 20-year-old Palestinian-American man in the West Bank, according to the Palestinian Ministry of Health and an eyewitness, as settler violence against Palestinians ramps up in the occupied territory.

Palestinian authorities and family members said Israeli settlers beat and killed a Palestinian-American man. Israel said the violence began when Palestinians threw stones at Israeli civilians.