Crash closes eastbound Highway 401 at Cornwall

An O.P.P. cruiser sits at the scene while evidence markers outline where a sedan collided with a guardrail in the eastbound lanes of Highway 401 near McConnell Avenue in Cornwall, Ont. on Saturday, Oct. 13, 2018. One person was medevaced from the scene. (Newswatch Group/Bill Kingston)

Update 2:25 p.m. Saturday: The eastbound lanes of the highway have reopened.

CORNWALL – A crash in the eastbound lanes of Highway 401 has closed a section of the highway between McConnell Avenue and Boundary Road.

The crash, which O.P.P. posted about on its Twitter account around 9:30 a.m., appeared to involve a single vehicle, a white Hyundai sedan, that had made contact with the end of a guardrail along the median.

The car had spun around and was on the shoulder of the eastbound lanes, facing west. The end of the guardrail was a hunk of twisted metal.

A white Hyundai faces the wrong way in the eastbound lanes of Highway 401 near Cornwall, Ont. on Saturday, Oct. 13, 2018. It appears the car collided with a guardrail. One person was medevaced from the scene. (Newswatch Group/Bill Kingston)

A homeowner along South Service Road, which runs parallel to Highway 401 on the north side, said he heard a loud pop just before the crash.

Around 12:20 p.m., O.P.P. investigators were laying evidence markers between the end of the guardrail and the vehicle about 500 feet down the highway.

Tweets from employees with Cornwall-SDG Paramedic Services show one person had been treated on scene and that person was taken by Ornge air ambulance.

Their identity and their condition is not known.

A call by Cornwall Newswatch to East Region O.P.P. was not immediately returned.

It’s not known how long the highway will be closed. Westbound traffic is unaffected.

An O.P.P. investigator points down the highway to the end of the guardrail (not shown) while standing next to a sedan in the eastbound lanes of Highway 401 near Cornwall, Ont. on Saturday, Oct. 13, 2018. One person was taken to hospital by Ornge air ambulance. (Newswatch Group/Bill Kingston)