The landslide occurred in a hilly region, hitting the village of
Koslanda in the
Haldummulla division, from the capital, Colombo. The landslide was triggered by
monsoon rains and was about long. According to Sri Lanka's
National Building Research Organisation, it had issued a warning of possible landslides on the night of 28 October, but the Disaster Management Center (DMC), which was responsible for broadcasting the warning, had failed to deliver to the Badulla area; the DMC denied the claim, saying it had sent the warning but residents were not able to evacuate before the slide occurred. Disaster Management Minister Mahinda Amaraweera said that residents in the area had previously been advised to leave in 2005 and 2012 because of the landslide risk. ==Casualties==