Groton — City police said they are continuing to investigate a motor vehicle accident Monday afternoon on Clarence B. Sharp Highway.

After receiving a call at 2:49 p.m., police responded and found a two-vehicle accident in which one person had serious, possibly life-threatening injuries, according to a news release. Police said two people were taken to Lawrence + Memorial Hospital in New London; one person was transported via Life Star helicopter from L+M to St. Francis Hospital in Hartford.

According to the news release, witnesses reported that a vehicle heading north on the highway was weaving in and out of traffic, crossed the center line and struck a second vehicle heading south. Police said the driver of the first vehicle, a 58-year-old man, was taken to L+M.

The driver of the second vehicle, a 66-year-old Groton man, was issued a misdemeanor summons for operating under suspension, misuse of plates, operating without insurance and operating an unregistered motor vehicle, according to the release.

Police ask anyone who has more information to contact Officer Alejandro Rosa at (860) 445-2451.