Four people were sent to the hospital after a four-door sedan crashed into a telephone pole shortly after 3 p.m. in Jamesport.
According to Riverhead police, the car was heading eastbound, just east of Jamesport Vineyards, when it veered off the road and into the pole.
Police are still investigating the cause of the crash, which shut down Main Road for close to an hour while traffic was diverted around the scene.
Police said the driver and passengers of the car were sent to Peconic Bay Medical Center by Mattituck Ambulance for non-life threatening injuries.
LIPA was on scene repairing the pole, and as of 4:15 p.m., Main Road had been cleared back up.