Police on Monday are investigating the cause of a crash on Route 2 in Greenbush that closed the road for several hours near the Milford Town line.

Police said a single vehicle drifted off the right side of the road just after 8 a.m. and struck a utility pole before coming to rest in about two feet of water in a nearby bog. One of the occupants was ejected and pinned under the vehicle, police said.

The vehicle was carrying four local people -- a 24-year-old man from Millinocket, a 36-year-old woman from Greenbush, a 27-year-old woman from Milford and a 29-year-old man from Old Town.

The Penobscot County Sheriff's Office was assisted on the scene by Greenbush Fire, Milford Fire, Old Town Ambulance & Fire, Orono Ambulance, Life Flight of Maine, Maine DOT, and Versant Power.

Police did not release the identities of those involved or their conditions after the crash.

John Lingley with permission

We'll update this story as more information becomes available.

LOOK: Full List of the Best Places to Live in Maine

Stacker compiled a list of the best places to live in Maine using data from Niche. Niche ranks places to live based on a variety of factors including cost of living, schools, health care, recreation, and weather. Cities, suburbs, and towns were included. Listings and images are from realtor.com. On the list, there's a robust mix of offerings from great schools and nightlife to high walkability and public parks.

Some areas have enjoyed rapid growth thanks to new businesses moving to the area, while others offer glimpses into area history with well-preserved architecture and museums. Keep reading to see if your hometown made the list.

See the Must-Drive Roads in Every State

UP NEXT: See how much gasoline cost the year you started driving