Two college students were killed when a bus hit them after ignoring a traffic signal here on Saturday, leading to clashes between locals and police.The accident occurred at the Chingrighata crossing on the Eastern Metropolitan Bypass around 11.45 am and the accused driver was arrested, a police officer said.After the accident, angry locals pelted police with stones and torched four buses, accusing police personnel of not controlling the traffic well and instead demanding money from several vehicles.Stones were hurled at police vehicles and a fire tender that was sent there to put out the fire.Police lobbed teargas shells and baton-charged the mob to disperse them."We have been talking to local people and area domination operation has been carried out," the police officer said.The road connecting IT sector of Salt Lake with the city and a part of EM Bypass was also closed for traffic movement for hours.