A major fire broke out in a three-storey commercial building in Raghuvanshi Mill Compound at Lower Parel here on Thursday morning, the third such incident in the city since midnight, officials said. No casualty was reported in the blaze, that erupted around 9.30 am in the ground floor of P-2 building located inside the mill compound, a fire brigade official said.

The flames later spread to the first and second floors of the building, he said. It was initially tagged as a ''level-2'' fire, but escalated to ''level-3'' (major) around 12.15 pm, he said.