A 31-year-old Hilo man died Tuesday after a two-vehicle crash on Saddle Road, .3 miles west of the 19-mile-marker.
Big Island police have identified the man as Calsey B. Santos.
Police say around 5:23 a.m. Santos was traveling west on Saddle Road in a 1994 Nissan four-door sedan when he crossed the centerline and sideswiped a 2005 UD Flatbed tow truck that was traveling east.
The driver of the tow truck, a 48-year-old Kailua-Kona man and his passenger, a 58-year-old Hilo man, were not injured.
Santos was taken to Hilo Medical Center, where he was pronounced dead at 8:07 a.m.
It is unknown at this time if speed, alcohol or drugs were involved.
This is the 12th traffic fatality on the Big Island this year compared with eight at this time last year.