United for Macedonia leader Ljube Boskoski has apologised to Prime Minister Nikola Gruevski for the uttered slanders and resulting inconvenience by presenting lies and insults in the course of this year's pre-election campaign.

"I publicly apologize to PM Nikola Gruevski for the uttered slanders and lies which are currently in procedure before a Skopje Court, as well as all other insults directed at him", reads the written apology made available to Mak media.

According to Boskoski, these lies were told on the basis of misinformation planted by certain groups and individuals from the opposition.

"I regret for the inconvenience that my lies and insults have caused to Nikola Gruevski", says Boskoski in the letter.