Palestinian police have raided the West Bank home of a rival of President Mahmoud Abbas.
The action comes amid an ongoing feud between Abbas and Mohammed Dahlan, a former senior member of the president's Fatah Party.
A Dahlan aide says police arrested 23 guards and assistants, confiscating their guns and a computer. The troops then circled Dahlan's home but didn't detain him.
The aide spoke on condition of anonymity because he wasn't authorized to talk to the media.
Dahlan was widely blamed by colleagues for the 2007 loss of Gaza to Fatah's rivals Hamas when he was the security chief in the strip.
He and Abbas have been feuding since Dahlan criticised the Palestinian leader in meetings with activists several months ago.