WARREN, NJ - All lanes have reopened on I-78 in Warren Township following an accident investigation that shut down the highway Monday. A state trooper injured in the crash is expected to survive, according to the New Jersey State Police.

New Jersey State Police posted an update Monday night stating that it "is investigating a crash that seriously injured a trooper earlier today. 

At 3:23 p.m., the trooper was involved in a crash while driving a marked troop car on Interstate 78 in Warren Township, Somerset County. He was entrapped and had to be extricated before being flown to University Hospital in Newark, N.J. where he is being treated for serious, but non-life-threatening leg injuries. 

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The cause and circumstances of the crash remain under investigation. Additional information will be released tomorrow morning."

Warren's Mount Bethel Fire Company posted, "As many of you may have seen in the media, today our members responded to a severe crash on Route 78 involving a NJSP Trooper. Our thoughts and prayers go out to the Trooper involved, his family and the New Jersey State Police. We hope for a full and speedy recovery!!

Also, we would like to thank all emergency personnel involved for their great teamwork! 
Warren Township Police Department
Watchung Police Department
Watchung Fire Department
Berkeley Heights Fire Department."