Police are looking for a man accused of stealing a car at gunpoint in Branford on Friday night.
Authorities said they received a call about an armed carjacking at Stop & Shop at about 7:15 p.m.
A man allegedly displayed a firearm and stole a person's car. The driver wasn't injured during the incident.
Then, a pursuit ensued and it was stopped because the suspect was going over 100 mph toward the West Haven/New Haven area, according to police.
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The car was later found unoccupied on Greenwich Avenue in New Haven.
Officers are actively looking for the suspect and another car that was also a part of the carjacking. It's described as a white four-door sedan.
No additional information was immediately available.