NJ Transit rail engineers are set to strike if a deal cannot be reached by the midnight deadline, impacting hundreds of thousands of commuters.

NJ Transit locomotive engineers could soon walk off the job, bringing to a halt a rail service used by 350,000 commuters in the event of a work stoppage. As of Thursday morning, the Brotherhood of Locomotive Engineers and Trainmen union and NJ Transit representatives were still meeting in negotiations hoping to reach an agreement prior to a potential strike.

NJ Transit’s bus routes, the agency’s predominate lines in the region, would not be impacted. But rail lines would.