Four persons, including a woman, were killed after an SUV first rammed into a motorcycle and then a truck waiting at a traffic signal in the city’s Dum Dum Park area, police said on Monday.
The accident happened around 1.30 am when the speeding vehicle collided with the two-wheeler and the truck, killing three persons on the spot, they said.
"The biker was declared dead at RG Kar Medical College and Hospital. The condition of three others undergoing treatment is stated to be critical," a senior police officer said.
The SUV has been impounded and police are examining CCTV footage for more details, he added.
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