A young Conservative staffer in Ontario has resigned as Elections Canada investigates automated crank calls that were aimed at suppressing voter turnout in the last federal election.

Michael Sona, 23, has resigned from his post at an Ontario MP's office, after his name was linked to a political scandal over ‘robocalls' that aimed to mislead voters about where to cast their ballots.

While there is no official evidence that Sona was behind the automated calls, it's believed he left the office of Toronto-area MP Eve Adams on Thursday night.

The RCMP and Elections Canada both launched probes into the scandal after opposition MPs came forward with accusations that voters in tight ridings had been subject to a ploy to suppress the vote.

The automated calls dialed up voters on election day and gave them erroneous information about where to cast their ballots.

Liberal interim leader Bob Rae has since asked for an emergency session in Parliament to address the issue, which he has called an attack on democracy.

"This debate is necessary because denying someone the opportunity to vote, is to deny them the most basic right that exists in our democracy," Rae said in a letter to House Speaker Andrew Scheer.

"These reports undermine the reputation of Parliament and cast a shadow over the legitimacy of all Parliamentary proceedings."

The Conservative Party of Canada has steadfastly denied any involvement in the scheme, with Prime Minister Stephen Harper saying Thursday that he had "absolutely no knowledge" of the crank calls.

But this week, Liberal MP John McCallum said that the calls were widespread and must have been the work of several people.

"It's not a single isolated riding, it's at least 18 that I'm aware of across the country, and I can't imagine how one single operative woke up one morning to target all those 18," he told CTV's Power Play.

"I don't have a (smoking) gun for the prime minister, but I think it must have been arranged at some central level to some degree, and hopefully this investigation will give us some answers."

Sona's professional profile on LinkedIn lists his position as a communications worker at the office of Conservative MP Rob Moore.

His experience also lists four months working for Conservative candidate Marty Burke in the riding of Guelph, Ont.

Sona was also linked to an attempted theft of a box of votes at a special ballot on the campus of the University of Guelph.

In April 2011, The Guelph Mercury reported that the communications director for the Guelph Conservative candidate Burke, showed up at the balloting site and said that it violated the Elections Canada Act.

The Tory staffer tried to then snatch the ballot box, but failed and left empty-handed.

At the time, the Conservatives denied that any supporters touched a ballot box.

Students speaking to the Guelph newspaper identified Sona as the Conservative involved in the incident.