If you have plans to travel northbound on Highway 2 north of Calgary you're going to be delayed.

Airdrie RCMP are on the scene of a multi-vehicle collision northbound on Highway 2.

It appears to involve a semi-truck which is blocking one northbound lane, and speeds are reduced in the adjacent lanes.

And southbound lanes are also down to one lane due to a separate issue.

It happened after 9 a.m. and it's expected to re-open relatively soon.