LEWISTON — Maine’s latest passenger rail expansion from Portland to Brunswick isn’t yet completed, but the state is already looking at new places to expand.

As part of a preliminary feasibility study, state officials are looking at how many passengers might use a new service between Portland and Montreal. The study will look at various routes, how many trips are possible in a day and how much tickets should cost.

Maine Public Broadcasting Network says officials have been holding meetings with two rail lines, local chambers of commerce, city councils and the public to get feedback.

One of the routes would go to Lewiston-Auburn and make stops in Oxford County before heading north. Some officials see strong demand created by the Oxford casino