A Dix Hills man was charged Saturday morning with leaving the scene of a crash after Suffolk police said he hit a bicyclist with his pickup truck, then fled.

Police said Raynard Dashiell, 54, was driving a 2011 Honda Ridgeline west on the Long Island Expressway north service road when he hit a Muttontown man riding his bike west of Half Hollow Road in Dix Hills just after 9 a.m.

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The bicyclist, 58, was seriously injured and taken by Dix Hills Rescue to Southside Hospital in Bay Shore.

Police said Dashiell drove away after the crash, but his vehicle became disabled a quarter-mile away, where he was found by officers. His vehicle was impounded to be checked by authorities.

Dashiell was charged with leaving the scene of an accident with serious injury.

He was booked overnight at the Second Precinct and was scheduled for arraignment Sunday at First District Court in Central Islip.