Two Saskatchewan MPs have become the latest targets of protesters upset over the scrapping of the Canadian Wheat Board's monopoly.

Someone has dumped large piles of grain outside the constituency offices of Regina-Qu'Appelle MP Andrew Scheer and Regina-Lumsden-Lake Centre MP Tom Lukiwski.

Last week, piles of grain were left outside constituency offices in Yorkton and Brandon.

A bill that will end the wheat board's monopoly on marketing and selling grain in Western Canada has already been passed in the House of Commons and is currently before the Senate.

If approved, the legislation will take effect next summer. Staff at both constituency offices say the grain will be hauled away Monday, and will likely be donated for use as deer feed.