New Jersey State Police are investigating.
A crash about 6:10 a.m. Monday on Interstate 80 East in Allamuchy Township shut the left lane, according to the New Jersey Department of Transportation.
At least one person suffered leg pain in the crash, according to the Warren County Department of Public Safety.
The only vehicle involved was off the side of the highway and injuries were minor, New Jersey State Police said.
Delays were 10 to 15 minutes at 6:45 a.m. and 15 to 20 minutes at 7:23 a.m., the DOT said.
Tony Rhodin may be reached at arhodin@lehighvalleylive.com. Follow him on Twitter @TonyRhodin. Find lehighvalleylive.com on Facebook.