The Panadura South Police said that a dispute between two groups in the Panadura area went too far.
The police say that no lives have been lost in the fire and the damage to property has not been estimated yet.
The police said that there was a fight between two groups at Panadura Popular Road and two people who were attacked are being treated at the Panadura Basic Hospital.
A senior police officer said that a group of unknown persons who came to the Modarawila apartment complex set fire to the house on the third floor of the Modarawila apartment complex where the people who allegedly attacked them were living.
A fire engine from the Moratuwa Municipality arrived and brought the fire under control with the help of local residents, but it is said that the fire has been severely damaged.
Police security was deployed around the Modarawila apartment complex. (Lankadeepa)