Army is preparing to remove three caravans placed near the unauthorized West Bank outpost of Givat Assaf, Israel Radio reported.
Hundreds of settlers arrived at the site late on Wednesday. Army so far did not move to dismantle the structures.
The three mobile homes are inhabited by families who recently moved into them.
On Wednesday, army evacuated two caravans from the outpost of Noffei Nehemia, south of Nablus. The evacuated caravans were brought in the site two days ago, the other twelve caravans were left intact.
Little resistance was reported, but four young settlers were arrested, one for assaulting a policeman.