An explosion at a fireworks factory killed 25 workers and injured eight more in central India, Times of India reported.

Workers were producing firecrackers in Kheri village, in the state of Madhya Pradesh, on Wednesday afternoon. The explosion triggered a blaze that engulfed the factory before firefighters put it out.

The injured people are being treated in hospitals for burns and smoke inhalation.

Authorities are investigating the cause of the explosion.