Russian President Vladimir Putin has denied suggestions that Russia would benefit from Britain's possible decision to leave the European Union.

Britain goes to the polls on June 23 to decide whether to stay in the 28-member bloc or leave.

Speaking at a meeting with the leaders of major international news agencies, Putin late on Friday said he has an opinion on the matter but would not voice it because it is not "our business at all." He, however, expressed his dismay at Prime Minister David Cameron's decision to hold the vote.

"Why did he do it? In order to blackmail Europe or scare someone?" Putin said.