Police are shutting down traffic in both directions on Kamehameha Highway following a traffic crash about 5:45 a.m. a quarter-mile south of Lanikuhana Avenue in Mililani.

According to initial reports, one person is pinned in a car as a result of the wreck, but is alert and talking.

Firefighters have been sent to the scene to help free the trapped motorist.

Police could not immediately say how long the shutdown will last.