A portion of I-94 has to be closed after a crash involving semi trucks this afternoon. NDDOT and North Dakota Highway Patrol closed I-94 between Casselton and West Fargo due to an incident involving trucks carrying hazardous materials. Both eastbound and westbound lanes were initially affected. As of 3:50 p.m., only the westbound lane remains closed. There is a detour set up on N.D. Highway 10.