The MP Ahmed Atoun, affiliated with the Change and Reform Bloc, was taken from his house in Bethlehem.
Four Palestinians were also detained in Ramallah, while three brothers were rounded up in Jenin.
In al-Khalil, two youths were kidnapped after ZOF soldiers broke into Al-Aroub refugee camp which led to the outbreak of violent clashes.
Three more arrests were carried out in Nablus. (ILKHA)