Fire breaks out in Mumbai gov't HQ MUMBAI, June 21 (UPI) -- Officials said they were working to extinguish a massive fire that broke out in Mumbai's government headquarters Thursday afternoon. The fire broke out around 2:40 p.m. on the fourth floor of the secretariat building, spreading quickly through the fifth, sixth and seventh floors. NDTV reported some 5,000 people were in the building at the time. Press Trust of India reported at least 16 people have been injured. Witnesses said it took more than 30 minutes for some 20 fire engines to arrive. Firefighters rescued nearly 65 people before naval helicopters arrived to help, telling people to move to the roof to be rescued. Vans with oxygen tanks were on standby for those suffocated by the smoke. Chief Minister Prithviraj Chavan made it out of the building safely and then supervised the rescue. Authorities are investigating the cause of the fire, which they said could have been a short circuit, but are not ruling out sabotage.