SUKKUR: Sukkur police arrested four impersonators in the limits of PS section on Sunday. Heavy contingent of police led by SHO Ubed ur Rehman Dharejo raided a point where four pushcart vendors including Liaquat, Fareed, Imran and Nisar were held hostage in an illegal confinement. The police arrested four persons who were confining people in the disguise of police officials. Jawed, Samiullah, Anees and Amir were nabbed on the spot while Zulfiqar Abbasi managed to escape. These accused are said to be employees of Anti-encroachment department. Police registered case against culprits and started investigation.