NEW DELHI: Indian leader Narendra Modi said Thursday a fatal flyover collapse in Kolkata was “an act of fraud” and accused West Bengal Chief Minister Mamata Banerjee of corruption at a state election rally.

Modi, campaigning for his Hindu nationalist Bharatiya Janata Party (BJP), said the collapse was the result of corrupt practices under Banerjee’s ruling Trinamool Congress state government.

“A huge bridge collapsed. It’s an act of fraud,” Modi said at the rally in Birpara, a town in the state’s far northeast.

Twenty-six people were killed when a portion of a flyover that was under construction collapsed onto a busy street crushing scores of pedestrians and cars on March 31.

Nine officials of the firm have been arrested on charges including murder as investigators probe negligence in the disaster, which came on the brink of a month-long state election expected to be closely fought.

Modi said it was a divine message to voters in the state to reject the chief minister’s party in the polls over what he alleged was rampant corruption.

“This business of money and death led to the collapse of the Vivekananda bridge,” Modi said.

The BJP, which has failed to gain ground in West Bengal and won just one seat in the previous election, is trying to put the ruling party on the back foot over the incident.

Derek O’Brien, a lawmaker and chief national spokesman for the Trinamool Congress, accused Modi in a social media post of “playing cheap politics over a tragedy.”

“These are not words befitting of the Prime Minister of India. They bring his high office to disrepute... The Trinamool Congress is far from being a corrupt party,” he wrote on Facebook.