Nova Scotia's Liberal Party says it did not create an image likening New Democratic Leader Darrell Dexter to Dexter Morgan, a fictional serial killer featured in the American cable show Dexter.

They merely retweeted it.

The mock poster contains an edited picture of Darrell Dexter with the caption: Dexter The Serial Job Killer.

Stephen Moore, a Liberal Party operative, tweeted the blood-splattered image on Monday.

"It's appropriate. It was felt to be light-hearted," said Kyley Harris, the director of communications for the Liberal campaign.

Harris said the image was not created by the Liberal Party.

"It was something discovered trolling the internet," Harris said.

"We've been subjected to a lot less light-hearted in this campaign."