UPDATE, 12 p.m.: The accident has been completely cleared and traffic is moving well through the area again.
UPDATE, 11:15 a.m.: Traffic remains jammed back to exit four because the right lane remains closed as a DEP contractor cleans up fluids spilled during the crash. A state trooper is still on the scene. The left and center lanes remain open.
10 a.m.: Traffic is jammed starting just before exit 5 in Greenwich heading into Stamford on Interstate 95 northbound because of an overturned vehicle.
As of 10 a.m., the vehicle had been turned over, but was still blocking the center and right lanes of the highway.
Here is a photo of the scene and the congestion from the WTNH/DOT traffic cameras: