Two brothers threw acid at a man in Lunuwila, seriously injuring him.
The Police said there had been a long-standing dispute between the man who was injured and the two brothers. The suspects, who arrived on a motorcycle, had fled the scene after launching the attack.
The injured man, who is a resident of Lunuwila, Thulawala, was rushed to the Colombo National Hospital.
A search for the attackers is being carried out by Koswatta Police.