NAPLES - One person was killed and several others injured in a Sunday afternoon crash that involved seven motorcycles on Route 114 in Naples near the River Road intersection.

Police said the deceased motorcyclist was a female, whose identity was not released. The group of bikers included off-duty Cumberland County Sheriff's deputies and Gray Fire Department personnel.

The motorcycles were traveling westbound at 4:20 p.m. on Route 114 approaching a blind curve when they came upon a van stopped in the westbound lane waiting to turn left onto River Road, according to the Cumberland County Sheriff's Department.

As the riders attempted to avoid the stopped van, several of the motorcycles skidded and went out of control. Six of the seven motorcycles crashed; one female operator was pronounced dead at the scene. A second male operator was airlifted to Maine Medical Center in Portland with serious head trauma, police stated in a release.

A third man, an off-duty Cumberland County Sheriff's deputy, was also involved in the accident and sustained a possible broken leg, police said. He was also transported to Maine Medical Center in Portland. Two additional operators were treated at the scene for cuts and abrasions.

Gray Fire Department Chief Ricky Plummer said many of those involved were members of his department, although the deceased was not one of his firefighters.

"It was a pretty chaotic mess and by the time I got there they just needed a ride home," Plummer said.

Route 114 was blocked off for several hours. Identities are being withheld pending notification of next of kin.