State Police have released the identity of the man killed after a head-on motor vehicle crash occurred Saturday night on the Mt. Hope Bridge. 

Paul L. Matthews, 63, of Heritage Road, Barrington, died at the scene, reports The Providence Journal. 

Warren resident Lenor C. Andrade, a passenger in the van driven by Matthews, was still being treated at Rhode Island Hospital, according to The Journal. 

Four Portsmouth residents were transported to a local hospital and treated for non-life threatening injuries. These individuals were James and Ann Hitchen, passengers in Matthews' van, and John Kelchner and Susan Kelchner. 

The cause of the crash remains under investigation at this time. 

Motorists were directed to find alternate routes Saturday night after police closed Mt. Hope Bridge to all traffic following this serious motor vehicle crash. 

Portsmouth police are directing questions to the State Police, who are leading the investigation.

The bridge was closed to traffic around 7:30 p.m. Saturday. Motorists were directed to take Route 24 to I-195 through Fall River, MA, as a detour to Bristol. 

Mt. Hope Bridge was re-opened to traffic around 10:30 p.m. Saturday.