The police recovered three bullet riddled bodies near a shrine on the outskirts of metropolis on Monday.
Police said three bullet riddled bodies also having torture marks were found dumped in a small river near shrine of a Sufi saint, Shah Wilayat, in Malir area of Karachi.
The police feared that the deceased whose identity could not be ascertained, were kidnapped and shot dead after torturing them.
The bodies were moved to civil hospital for medico-legal formalities and identification.