Police recovered four bodies of unknown persons from Charsadda Road in Mardan Tuesday morning. Police sources said that residents saw the bodies aging 25-30 lying in the fields and informed the police . The Saddar Police Station took the bodies into custody. A police officer said the police are making efforts for the identification of the slain men and motives behind the incident. Initial investigation suggested that they had no sign of torture, the police said, adding that it seems that the men had been somewhere else and bodies were thrown in the area. Police transferred the bodies to hospital for post mortem.