(Photo credit: Reuters/Jennifer Lorenzini)

CORTINA D'AMPEZZO, Italy -- World Curling said on Saturday that it would have officials monitoring for rule violations during the rest of the competition at the Olympics after Sweden's men's team accused Canada of cheating in a tense round-robin game.

Tensions boiled over on Friday when Brad Jacobs' Canada entry beat Sweden 8-6, with Niklas Edin's rink alleging their opponents were double touching the stone during the contest.

World Curling has introduced electronic handles on stones at the Games, which flash red if players are still making contact with the stone beyond the hog line -- the point where curlers must let go during delivery.

However, the sensor for detecting violations is in the handle, with Sweden claiming Canada's players were touching the granite, where there are no sensors.

'It is not possible for World Curling to have game umpires positioned to observe all hog lines for every stone delivery,' World Curling said in a statement.

'However, beginning with the Saturday (Feb. 14) afternoon session, two officials will move between all four sheets and observe deliveries.'

World Curling also clarified its rules on deliveries, saying: 'During forward motion, touching the granite of the stone is not allowed. This will result in the stone being removed from play.'

After Sweden and Canada asked officials to keep an eye on their opponents' deliveries early on, there was a heated exchange between the teams' thirds Marc Kennedy and Oskar Eriksson toward the end of the game.

Eriksson told Kennedy he would show him a video replay of him touching the stone repeatedly. The Canadian responded with an expletive.

'World Curling spoke with the Canadian officials to issue a verbal warning regarding the language used by a Canadian men's player during the game,' the sport's governing body said.

'During that meeting it was made clear to those officials that further inappropriate behavior... would result in additional sanctions.'

Curling Canada CEO Nolan Thiessen said it was a poor choice of words from Kennedy

'I think heat of the moment, I would allow for as well,' Thiessen told reporters.

'Something was said in his ear which got him going. Head games get played in a lot of sports and things get said in competitive sport and I think this was one of those situations. Do I wish Mark didn't drop an F-bomb? Yeah.'

Swedish media on Friday tore into Kennedy, accusing the 2010 Olympic champion of cheating while also releasing videos and images of him appearing to touch a stone while it was crossing the hog line.

Asked about the video, Thiessen replied: 'I was surprised that there was a live video on the hog line outside of OBS (Olympic Broadcasting Services) rules.

'That seems odd to me. But nevertheless, you know, I think they (the Canada team) are concentrating on the game today.'

The Swedish Curling Association did not immediately respond to a request for comment.

--Reuters, Special to Field Level Media