KATHMANDU, Nepal — A strong rainstorm has swept through southern Nepal, destroying homes, felling trees and leaving at least 28 people dead and hundreds more injured, the authorities said.

Many of those killed were asleep in simple huts on Sunday night when powerful winds sent deadly debris flying through the air.

Bara District, near the Indian border, sustained the most damage and casualties, said Sita Uprety, a police official.

The Nepal Army and the national police were deployed to Bara and neighboring Parsa District. Rescuers were struggling to account for the dead and injured in the dark.