At least two Winnipeggers say they were targeted in the last federal election by phone calls pointing them to the wrong polling stations, the CBC's Chris Glover reports.

The Liberals and NDP have accused Conservative-affiliated firms of being involved in a scheme to deliberately discourage voters from casting ballots in the May 2 election.

In some cases, the opposition parties claim, callers were misdirected to the wrong location to vote. Live and automated calls allegedly falsely impersonated Elections Canada or an opponent's campaign.

Conservatives have strongly denied any involvement or co-ordinated effort and asked for anyone with hard evidence to bring it forward.

However, anecdotes revealing potentially more suspicious calls have been emerging across the country, including in Winnipeg, in recent days.