FAIRFIELD — An accident between a bus and a car left Interstate 95 congested Sunday evening.

According to the Connecticut Department of Transportation, a car-versus-bus accident was reported at 6:49 p.m. between exits 25 and 24 on I-95 southbound. The accident jammed up traffic for about 1.5 miles between exits 26 and 24.

The DOT reported that it was unknown how long the accident would take to resolve.

Update, 8:15 p.m.: The alert has been cleared.