Update: Sunday, 2 p.m.
Southampton Town Police now say that the bicyclist was not struck by a car, but had fallen off the bicycle, apparently while intoxicated.
Additional information about the bicyclist's injuries, if any charges might be filed, or why the person was riding a bicycle on a highway ramp were still not available from police.
The person has not been identified by police.
Original Story: Friday 5 p.m.
A bicyclist was struck by a vehicle on an exit ramp leading from Flanders Road to Sunrise Highway in Hampton Bays shortly before 5 p.m. on Friday.
As of 5:15 p.m., responders were still on the scene, according to Southampton Town Police. The Hampton Bays Ambulance responded as well as police.
The call came in at 4:42 p.m. Further information, including about the extent of any injuries, was not immediately available.