11:28 A.M. UPDATE: All lanes of Interstate 15 are back open near the Spaghetti Bowl.
LAS VEGAS (KTNV) -- Northbound Interstate 15 was shut down near Exit 42 around 5:30 a.m. Monday after a semi-truck jackknifed in the middle of the road.
Traffic is being diverted to northbound U.S. 95 as police investigate the crash.
13 Action News has a crew at the scene. More information to come as the story develops.