At least 56 people have been killed and 21 are missing in Sri Lanka after floods and landslides triggered by heavy rains wreaked havoc this week, in one of its worst weather related disasters the country has seen in recent years, BBC reported.

Twenty-one people were killed in the central tea-growing district of Badulla when a landslide crashed onto their homes overnight, the Disaster Management Centre (DMC) said in a statement.

Videos uploaded to social media show houses being washed away as flood waters cascade through towns, while most train services have been cancelled across the country, according to BBC.