The explosives used at Zaveri Bazaar and Opera House appear to be high-intensity Improvised Explosive Devices (IEDs), city police chief Arup Patnaik said, explaining that it seems so from the extent of damage caused in the two areas.
The one at the bus stop in Dadar was comparatively of lower intensity. All the blasts took place within a span of eight to 10 minutes, Patnaik said.
Experts believe the effect of the two bombs at Zaveri Bazaar was the worst as the explosions took place inside a congested lane, while the others were in relatively open spaces.
Investigators are also not ruling out the possible use of RDX because of the intensity of the explosions and the white smoke emitted, as reported by eyewitnesses at the jewellery market.
An unexploded bomb was also recovered from Zaveri Bazaar. Patnaik said the device was found below an umbrella with a circuit and batteries attached to it. “The Bomb Detection and Disposal Squad (BDDS) has taken the device for examination,” he said.
Patnaik said the intensity and lethality of the bombs were worse because of splinters and shrapnel that were laced with the explosive materials.
Following the blasts, two suspicious bags were also found in Juhu. The BDDS rushed to the spot and after examination, one was found harmless. Tests are being conducted on the contents of the other bag.