India, Sept. 29 -- Days after nine people were killed when a double-decker AC bus caught fire on the Yamuna Expressway in Greater Noida, police have found that the bus was also being used to transport commercial goods. Officials are now investigating whether the additional load led to overloading and contributed to the fire.

"We found commercial items such as bundles of marriage cards, wires, iron rings and other materials in the luggage compartment and on the roof," said Rajeev Singh Sisodia, assistant commissioner of police (ACP), Greater Noida.

Police are trying to determine the quantity and weight of the goods. "Since most of the material was destroyed, estimating the total weight is difficult," the ACP said.

Officials are also exa...