Two police inspectors have been arrested in connection with a clash between two groups of police in the Warakapola area on the Colombo-Kandy main road on the 30th, reports say.
One of the policemen was returning from a wedding in Rambukkana on the night of the 30th when he came across a clash with the other party regarding traffic.
Both parties were in civilian clothes at the time and it was reported that two police officers who were injured in the crash were hospitalized.
Two more police officers are to be arrested in connection with the incident.
A number of incidents of breach of discipline by the Sri Lanka Police have been reported in the recent past.