08/24/2015 07:53 EDT | Updated 08/24/2016 05:59 EDT

Semi Plows Into Van On Highway West Of Calgary In Deadly Accident

CALGARY — One person was killed and six others injured when a semi crossed the median and crashed into a minivan on the Trans-Canada Highway west of Calgary.

RCMP say the 86-year-old Calgary woman was one of five people in the minivan travelling east on Monday afternoon.

A 14-year-old boy was seriously injured, while the woman's husband, who is in his 90s, an 11-year-old girl and a 48-year-old woman driving the minivan all had minor injuries.

Mounties say the driver of the semi, a 44-year-old man from Grande Prairie, Alta., and a 37-year-old man from Delta, B.C.; had minor injuries and were taken to hospital for further examination.

The eastbound lanes of the Highway 1 were closed from about 2 p.m., when the crash happened, until 10:40 p.m.

Police did not have an update on the conditions of the injured as of late Mnday night.

Cochrane RCMP Sgt. Dave Hardy said police have spoken with the truck driver briefly.

"There was a lane change being made and we have witnesses saying it was making that lane change and it just entered the median and came across the traffic lanes.''

With files from CTV Calgary