A 22-year-old man is dead after a collision on Anthony Henday Drive in south Edmonton Thursday morning.

Police say the 22-year-old man died after the small compact car he was driving allegedly rear-ended a grader around the 91 Street exit on Anthony Henday Drive just after 6:30 a.m. Thursday.

“We had an eastbound compact car and an eastbound tractor trailer grader travelling in the curb lane which is the right-hand lane," said Sgt. Gener Alvarado with the Edmonton Police Service.

"The grader was travelling at a slower speed than normal traffic and for unknown reasons at this point, the eastbound compact car, rear-ended the grader."

Police say the grader was travelling somewhere between 40-50 km/h.

It's unclear how fast the car was going.

Police do not believe alcohol is a factor and continue to investigate.

Anthony Henday Drive from 111 Street to 91 Street was closed as a result of the crash but re-opened just before noon.

With files from Veronica Jubinville