A motorcyclist injured in a crash last week in North Haven was in "grave condition" Monday, Southampton Town police said.
Police Monday identified the motorcyclist as Santiago V. Velay, 34, of Florida.
Southampton Town police said the driver of a 2003 Jeep Liberty involved in the crash was not injured.
The accident occurred at 7:05 p.m. near the intersection of Fresh Pond Road, police said.
Police said the motorcyclist, on a 2000 Honda, was headed north on Route 114 when he "lost control of his motorcycle and rear-ended a vehicle in front of him while traveling in the same direction," police said in a news release Monday.
Both vehicles were impounded for a safety check. Police said they are not expecting to file criminal charges.