NEW DELHI (AP) — Police say several explosions at a private fireworks factory in southern India have killed at least 15 workers and injured 26 others. Police officer Raj Narayanan says those injured in Friday’s blasts at the factory in Tamil Nadu state were taken to a nearby hospital for treatment. The Press Trust of India news agency says the explosions occurred while chemicals were being mixed by the workers to make fireworks. Fireworks manufacturing is a big business in India, where fireworks are often set off at festivals and weddings. Many illegal factories produce fireworks that are cheaper to buy than legally made ones.