The Police have recorded statements from more than 40 people in connection with Tuesday's shooting at the Kudawella Fisheries Harbour where four people were killed and eight injured.
Police Spokesman Ruwan Gunasekera said 11 teams of police personnel were conducting investigations.
He said the bodies of those killed were handed over to their relatives after the postmortem examinations.
Two gunmen who had arrived on a motorcycle had opened fire at those inside the Kudawella Fisheries Harbour in Tangalle.
Investigation are being conducted on the instructions of Southern Province Senior DIG and Matara and Tangalle Divisional DIGs under the direction of the IGP.
Meanwhile, last morning the Tangalle police personnel manning a roadblock at Kudawella Junction shot at a van which had driven away despite the police signalling it to stop.
Police said in the wake of the shooting incident at Kudawella, the police had set up special security measures in the area under the directions of the IGP.(Darshana Sanjeewa)