EAST LANSING, Mich. (WOOD) — Amtrak is considering a proposal that would extend the Wolverine line’s rail service from Chicago to Toronto.

The proposal was discussed on Thursday during the Michigan Rail Conference at Michigan State University in East Lansing. The idea was first brought up in March in an Amtrak grant request.

Amtrak says the idea would involve construction of a border processing facility and upgrades to existing train stations along the way.

The proposal involves extending the route of a Chicago-Detroit Wolverine train through Ontario and into Toronto. That line currently runs through Kalamazoo.

“There would be multiple railroads to work with that we currently partnership with, and so it would take some cooperation to get such service going,” said Michigan Department of Transportation spokesman Michael Frezell.

The total cost of the extension wasn’t released.