In their struggle to contain the massive fire at the Berger Paints warehouse at Bommanahalli on Thursday, the Fire Services personnel demolished the building after part of it collapsed.

After bringing the blaze under control around 3 p.m., they decided to pull down the partially collapsed structure. Using earthmoving machinery, the warehouse and the two-storey building adjacent to it housing a garment factor were razed to the ground by 7.15 p.m.

An official said: “The building had become weak as a portion had collapsed. Also, it [helped] put out the fire quickly.”

Reason not known

Though the source of the fire is yet to be determined, Chief Fire Officer Hambalgod said apart from possible short circuit, volatile chemicals stored in the warehouse could have set off a chemical reaction.

Yoga Sai Prakash, an eyewitness, said that he heard explosions of what are suspected to be paint cans going off.

Traffic disrupted

Madiwala police stopped all traffic on the arterial Bommanahalli Road and guided the fire tenders to rush to the spot.

“We blocked the traffic for some time to also let them draw water from a private company but there was not enough water there,” said Madiwala Police Inspector K.C. Lakshminarayana.

This search for water led to the piling of the peak hour traffic on both sides of Hosur Road. But with more police personnel deployed, the jam was cleared in good time, he said.