The Police said that a car driven by a man under the influence of liquor had crashed into a cyclist along the Marine Drive in Wellawatte.
The vehicle had later crashed into a group of people exercising in the morning.
The cyclist died on the spot while three others sustained injuries and were admitted to hospital.
However, the driver of the vehicle had failed to stop and had continued to drive.
Another motorist gave chase and managed to nab the driver and hand him over to the Police.
Police Spokesman, Deputy Inspector General (DIG) Ajith Rohana said the driver had been returning from a club and was found to be drunk.
He said that another person who was in the vehicle at the time was also arrested. (Colombo Gazette)