According to Connecticut State Police, the chain-reaction crash, which backed up traffic for several miles, occurred around 12:15 p.m. Thursday in Stratford.
The crash was caused when the last of three vehicles traveling behind each other hit the back of the vehicle in front, which sent the second car into the back of the first vehicle, state police said.
Two drivers were transported to Bridgeport Hospital with minor injuries.
The roadway has reopened and traffic is flowing.
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