A rainstorm swept through southern Nepal on Sunday, leaving at least 25 people dead and hundreds more injured, officials said.

Prime Minister Khadga Prasad Oli of Nepal said in a Twitter message Sunday that he had received a report of 25 people killed and 400 injured.

He said security forces have been alerted and that rescue teams and helicopters with night-vision capabilities were waiting for the weather to clear to help the injured people from affected villages.

A government administrator, Rajesh Poudel, said the number of deaths would likely increase because the storm had hit many villages in the Bara District, located about 75 miles south of the capital, Kathmandu.