Tens of thousands of people were evacuated in Indonesia’s capital Jakarta after flash floods and landslides in the area killed up to 21 people, with more heavy rain forecast, authorities said.

The flooding, among the deadliest in years, caused chaos in parts of Southeast Asia’s biggest city with train lines blocked and power outages in some areas. Swathes of Jakarta and nearby towns were inundated after heavy rain fell on December, 31 and into the early hours of New Year’s Day.