Surveillance footage showed the bus veered across the lanes, hit a auto, demolished a section of Yangtze River No 2 bridge's barrier and plunged into the river, where the water is about 70 metres [230 feet] deep.
A floating crane pulled the wreckage of the bus from the river, Wednesday evening, after it sank to a reported depth of 70 meters (230 feet) underwater.
A video retrieved from the black box of the bus shows a passenger scuffling with the driver just moments before the crash.
The passenger, only identified as a 48-year-old woman with the surname Liu, was angry at the driver for missing her stop, police said.
Police examined nearly 2,300 hours of surveillance videos along the bus route to determine the cause of the accident which gripped the nation.
RBI autonomy essential, says finance ministry amid rift with central bank
Another report in the Times of India said the government had mentioned the rule to the RBI in consultations, without invoking it. Arguing against the Centre's proposal, the RBI had said, "The digital payments have made good and steady progress".
Suddenly, the bus swerved onto the wrong side of the road before striking another vehicle, breaking through a guardrail and plunging into the river in Wanzhou, Chongqing. China's state newspaper, People's Daily, reports police have now say the fight was the cause of the crash. She walked up to the driver's seat and scolded him.
Rescue teams said that at least 13 people died, while two remaining passengers are still unaccounted for following the accident.
A police statement said a female passenger started quarrelling with the driver after she missed her stop. The driver turned his head back several times arguing. "The driver's right hand came off the steering wheel during the altercation, which led to the steering wheel turning sharply to the left". This seems to be the moment the driver realised he had lost control of his vehicle.
Rumours prompted calls to ban female drivers, as the auto that the bus hit was driven by a woman.