The driver of terror leader Sahran Hashim Mohammad, has been arrested, the Police said.
He was arrested in Kattankudy and handed over to the Criminal Investigations Department (CID).
A vehicle used to transport the suicide bombers was also seized.
The Police have also seized a kit similar to that worn by Sahran Hashim, also known as Mohommad Zaharan, in a video where he extends support to the Islamic State (IS).
Sahran Hashim is believed to be the mastermind behind the terror attacks on Easter Sunday.
He was reportedly killed in one of the suicide attacks in Colombo last Sunday. (Colombo Gazette)