Floods and landslides on Indonesia’s Sumatra island have killed 631 people and displaced more than one million, the National Disaster Management Agency said on Tuesday.

The agency added that 472 people remain missing and 2,600 others were injured across three provinces, according to Al Arabiya Net.

More than 3.3 million people have been affected, with many evacuated to temporary shelters.

The floods are part of a series of severe weather events that hit Indonesia, Thailand, Malaysia, and Sri Lanka last week, killing around 1,200 people and leaving hundreds missing.