ENFIELD, N.C. — Northbound lanes of Interstate 95 near Enfield are open to traffic following a wreck involving a tractor-trailer Wednesday morning.

The wreck happened around 9:30 a.m. near exit 154 when a tractor-trailer hauling plastic pellets was heading northbound on I-95 when it began to slow down. Authorities say another tractor-trailer, an empty flat-bed, did not slow down and hit the first tractor-trailer from behind.

The second tractor-trailer, driven by Jarvis Brown, 30, reportedly burst into flames, and the cab became detached. Brown was taken to UNC Hospitals where he is listed in critical condition.

Investigators say the driver of the first tractor-trailer, Steven Grossmann, 47, of Pendleton, S.C., was not injured, but his truck needed to be towed.

Authorities say northbound I-95 was shut down for about two hours while crews cleared the accident. Investigators say the preliminary cause of the accident was the second tractor-trailer's failure to reduce speed.