Canadian curler Mark Kennedy was accused of cheating in his country's expletive-laden victory over Sweden in the Winter Olympics. Despite taking place on ice, things became heated in the round-robin contest between the two curling heavyweights.

Canada, who were skipped by Brad Jacobs, managed to secure an 8-6 victory over Sweden, who were recently beaten by Team GB in one of their opening matches. But the biggest talking point of the game took place when Sweden's Oskar Eriksson repeatedly accused Kennedy of touching his stones after letting go, an act which is forbidden in curling once the stone has crossed the hog line. Furious at the cheating accusation, Kennedy responded with some heavy expletives for his opponents.

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The Canadian pointed at himself, as if stunned that Eriksson was accusing him. He then shouted: "I haven't done it once. You can f*** off."

Undeterred by the fruity language of his rival, the Swede doubled down and shouted back. "I'll show you a video after the game. I'll show you a video where it's two meters over the hog line."

He continued complaining about the alleged infraction throughout the contest and was also heard telling the judge: "You saw it. You saw the touching, right? So is he allowed to do it or not? That's the question."

Even Eriksson's team-mate Niklas Edin started supporting his colleague's protests, striding up to the judge and saying: "There's no way you can do that," a comment which prompted Canadian star Ben Herbert to launch a counter-protest of his own, telling the judge to 'keep an eye' on some alleged double-touching from Eriksson.

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In the sixth end, the Swede's frustrations boiled over again. On this occasion, in slow motion video depicted Canadian star Kennedy releasing the stone and then poking it again, just as it slid across the hog line, which would have been an infraction if spotted.

Unfortunately for the Swedes, the judge said they could not decipher for certain if a double-touch had occurred. The fiery encounter prompted World Curling to release a statement, clarifying the rules, saying: "A stone must be clearly released from the hand before it reaches the hog line at the delivery end. If the player fails to do so, the stone is immediately removed from play by the delivering team.

"If a hog line violation stone is not immediately removed and strikes another stone, the delivered stone must be removed from play by the delivering team, and any displaced stones are replaced, by the nonoffending team, to their positions prior to the violation taking place."

After the match, Kennedy, a Winter Olympic gold medallist at the 2010 games in Vancouver, said: "There's hog line devices on there. I don't know. And he's still accusing us of cheating. I didn't like it. So I told him where to stick it."