A powerful dust storm, lightning and unseasonal rain have killed at least 30 people in central and western India.

Prime Minister Narendra Modi in a tweet Wednesday expressed anguish over the loss of lives and announced relief for the victims' families.

Tuesday's storm had winds touching 50 kilometers per hour (30 miles per hour) and damaged dozens of homes and uprooted trees and power lines in Madhya Pradesh, Gujarat and Rajasthan states.

Madhya Pradesh state's top elected official Kamal Nath said at least 10 deaths were reported from Indore and Dhar districts.

The Press Trust of India news agency said another 20 deaths were reported from Gujarat and Rajasthan states.

India's monsoon season starts in June and ends in September.