UPDATE, 7:32 a.m.: The Parkway has been reopened fully.
5:33 a.m.: The Merritt Parkway northbound is shut down from exits 39 to 40 because of a jackknifed tractor-trailer. The on-ramps from Route 7 to the Parkway are also closed.
Tractor-trailers are banned from the parkway. State police said they are working to get the truck off the roadway, but didn’t release any other information about how it got there, or how long it would take to clear.
Check back for more info.