A crash involving several vehicles shut down both sides of Interstate 84 in Farmington on Sunday night.
The crash happened in the westbound lanes of I-84 in the area of Exit 37, according to state police.
The highway was shut down just after 6 p.m., according to the Connecticut Department of Transportation.
The crash also closed I-84 East, state police said.
Get top local stories in Connecticut delivered to you every morning. Sign up for NBC Connecticut's News Headlines newsletter.
According to state police, the crash was fatal, though they did not say how many people were killed.
The highway reopened around 3 a.m.
No other details were immediately available.