Waterford — State Sen. Andrew Maynard suffered a severe concussion when his car crashed into an SUV and traveled down an embankment on Route 32 last Thursday afternoon, according to an attorney representing him.

Robert Reardon said Monday that Maynard, whom he spoke to in the hospital Sunday, doesn’t remember anything about the crash, as he was knocked unconscious.

Reardon cautioned people not to speculate or make assumptions about the cause of the crash since the driver of the SUV originally said Maynard, D-18th District, came up from behind her as she traveled north on Route 32 near Scotch Cap Road but has since said Maynard was heading south and swerving when he struck her.

“No one should prejudge what happened. We need to look at the forensic evidence, any witness testimony and see what (Maynard) can tell us,” he said.

He said his firm has already begun its own investigation and will use its own accident reconstruction experts. He added that his firm will cooperate with Waterford police to determine what occurred. He said it could take months to properly conduct a forensic examination and reconstruct the crash in order to fully understand what occurred.

Reardon asked that anyone who may have witnessed the crash to contact his New London firm. While his firm often represents plaintiffs in personal injury cases, Reardon said he has been friends with Maynard for many years. He said his daughter, Kelly Reardon, will be handling the case.

Reardon said that when he visited Maynard in the hospital Sunday, the senator was anxious to get back to the legislature, which begins its session on Feb. 3. He said Maynard had a contusion on his forehead.

“He was Andy. He was smiling,” he said, adding that it was obvious Maynard had a headache when he spoke.

He said Maynard was expected to be discharged Monday or Tuesday. He added Maynard had not suffered any broken bones but there was some question about other possible injuries because he had not yet been out of bed on Sunday.

Reardon said that during their meeting, Maynard expressed concern about the condition of the driver of the SUV, Laury Benjamin-Scelfo of Uncasville, who has sought treatment for neck and shoulder pain.

“That’s why I called the other driver and to get their insurance information,” Reardon said.

Waterford Police Chief Brett Mahoney referred comment on the crash Monday to a lieutenant who was not on duty. Reardon said police have not yet interviewed Maynard.

Reardon said Maynard remembers leaving the state Capitol parking garage about an hour before the 3:30 p.m. crash and driving home but nothing after that.

State Sen. Cathy Osten, D-Sprague, said Thursday’s two-hour Senate Democratic caucus was called to cover issues to be discussed during the upcoming 2016 spring session.

She said Maynard participated in discussions, and there was no indication of any new medical problems.

“He was fine,” Osten said. “He participated in the caucus. There was nothing of note at all.”

Osten said she was “shocked like everyone else” to learn of the accident later Thursday.

Laury Benjamin-Scelfo’s husband, Pietro Scelfo, said Sunday that because English is not his wife’s primary language, there was some initial confusion about her description of which way Maynard’s car was traveling. He said his wife was driving her Chevy Trailblazer northbound on Route 32 when she saw Maynard’s 2013 VW Passat heading southbound toward her and swerving.

The cars collided and Maynard’s car continued about 200 yards farther south before rolling down an embankment. Scelfo said his wife’s SUV was totaled. Maynard’s car, which is now located at Sireci’s Automotive at Boston Post Road and Cross Road, also appears to be a total loss.

Shortly after the crash, police and state Senate Democratic Caucus spokesman Adam Joseph said Maynard was involved in a one-car accident while returning from a caucus at the state Capitol in Hartford. But on Friday, police said Maynard was involved in a two-car crash. Scelfo said at the time that his wife looked into her rear-view mirror and saw that a vehicle was fast approaching and swerving between lanes.

But on Saturday, Waterford police confirmed they are looking at Maynard’s vehicle traveling in the “wrong lane” on Route 32 as a possible cause. Police were not available Sunday or Monday to clarify if “wrong lane” meant he was driving in the wrong direction.

Maynard suffered a traumatic brain injury in a July 2014 fall at his home in Stonington and has since struggled to regain his ability to speak. He has declined through spokesmen all interview requests since his injury.

Scelfo has questioned Maynard’s fitness to drive, although Joseph has said he was cleared to drive. It is unknown who cleared the senator to drive or the process that was involved.

Staff writer Claire Bessette contributed to this report.

j.wojtas@theday.com

Twitter: @joewojtas