KARACHI: Police conducted a search operation in the city and took into custody twenty-eight suspects, late Sunday night. According to details, police conducted a search operation in PIB Colony and Cantt station’s surrounding areas. Police raided a drug den in PIB Colony and took into custody 12 suspects. The suspects were then transferred to a nearby police station for further investigation. In the surrounding area of Karachi Cantt station, police searched hotels in the vicinity and took into custody 11 suspects. On the other hand, police arrested two suspects from Rizvia Society while Gulbahar police took into custody three persons.