A fisherman and his son went missing while fishing  in the Karnaphuli River near Evergreen Ghat in Chattogram on Sunday. They are Tapan Das, 45  and Samir Das,15 of Kolagaon in Patia upazila. Read: Fisherman goes missing as boat sinks in Arial Khan Senior officer of Nandakanan Fire Service Mohammad Ali  said Tapan, his son Samir and another one went to the Karnaphuli River for fishing around 5 am. At one stage, Samir fell into the river first and when Tapan jumped into the river to rescue his son their boat sank. On information, divers from the local Fire Service rushed to the spot and conducted a rescue operation.