PORTSMOUTH A woman is in serious but stable condition after her Honda Ruckus Scooter struck a car on Sagamore Avenue in the area of Little Harbor Road at 2:08 p.m. Saturday, according to Portsmouth Police Sgt. Kuffer R. Kaltenborn.

Sagamore Avenue (U.S. Route 1B) was closed for approximately three hours but has now been reopened.

When police and other emergency responders arrived at the scene, the woman was lying unresponsive on the street and was transported to Portsmouth Regional Hospital. The woman is being treated for a head injury as well as other non-life threatening trauma, Kaltenborn said. She was not wearing a helmet.

The on scene investigation suggests that the operator of the scooter, while traveling north on Sagamore Avenue, crossed the center median and sideswiped an oncoming vehicle, police said in a press release. The driver of the vehicle was also transported to Portsmouth Regional Hospital for undisclosed treatment.

At this time, police do not believe alcohol was a factor for the driver of either the scooter or the car, Kaltenborn said.

Pending family notifications police are not releasing the names of the drivers involved in the accident.

Portsmouth Police are still investigating the accident and are asking for the public's assistance. If you have any information relevant to this incident, please contact Officer Jack Maloney at (603) 610-7579.

You may also choose to remain anonymous by reporting any information to Seacoast Crime Stoppers by calling (603) 431-1199, texting CRIMES (274637) and including TIPSCS in the message, or you may submit a confidential tip online by visiting the Seacoast Crime Stoppers website at www.seacoastcrimestoppers.com or the Facebook Page. Rewards of up to $1,000.00 may be paid for help solving cases if the information leads to the arrest or indictment of a suspect(s).