All lanes on Interstate-91 southbound in Windsor are closed following a serious crash, according to Connecticut state police.
The accident was reported at 8:15 p.m.
Police have blocked off the highway while crews work to clear the roads.
Police said traffic was getting by in the HOV lane.
No further information about the crash, how many cars were involved, or any injuries has yet been released by police.
This is a breaking news story. Stay with News 8 for the latest updates on this developing story.