With Palestinians potentially going to the polls in 2021, eyes are turning to Dahlan as a potential challenger to Mahmoud Abbas.
The arrests were carried out in the West Bank and included Haytham al-Halabi and Salim Abu Safia, both senior members of Dahlan's faction, a statement from the group said.
It’s not clear at this stage whether the Palestinian factions have reached agreement to hold the proposed elections, and Abbas has yet to issue a “presidential decree” setting a date for the vote.