A participant runs past the Israeli barrier in the occupied West Bank during the annual Palestine Marathon in Bethlehem on March 23, 2018. Palestinian Preventive Security Forces on April 18 arrested Hazem Naser at home in the northern West Bank city of Tulkarem, according to news reports. (Reuters/Mussa Qawasma)
A participant runs past the Israeli barrier in the occupied West Bank during the annual Palestine Marathon in Bethlehem on March 23, 2018. Palestinian Preventive Security Forces on April 18 arrested Hazem Naser at home in the northern West Bank city of Tulkarem, according to news reports. (Reuters/Mussa Qawasma)

Palestinian security forces arrest journalist in the West Bank