Yesterday, four industrial workers were killed and 18 others injured, two of them seriously, in the mishap at Aarti Drugs in Tarapur MIDC area.
According to police, senior staff at the plant, including Director Uday Patil, Joint MD Archit Savla, Director Harshad Shah, Assistant Production Manager Popat Patel, Safety Officer Jitendra Devra, Operations Manager P K Mishra and Works Manager Sachin Poojari (dead) have been booked in the case.
While search for two more persons --P K Mishra and Kunal Chavan -- who are feared trapped in the debris is still on, they said. The building had collapsed following the impact of the explosion.
The incident took place after a nitrate reaction during the production of Methyl Nitro Imitazole, led to fumes resulting in the explosion of a chemical container.