A Custer man was in serious condition Sunday after a head-on collision between two dirt bikes near Birch Bay-Lynden Road late Saturday night.
Matthew J. Smith, 29, was traveling northbound on West 30th Crest when he collided with 36-year-old Bellingham resident Mark A. Munzanreder at about 10 p.m., according to a Washington State Patrol press release. Neither Smith nor Munzanreder were using headlights or wearing helmets.
Munzanreder was treated and released Saturday night, according to a St. Joseph Hospital representative.
It was not clear whether the two knew each other.
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State Patrol troopers suspect that drugs or alcohol were involved, but the case is still under investigation.