A group of hackers known as Anonymous have threatened on Sunday to disrupt Cyprus' presidential election process by attacking the computer system of the Ministry of Interior.
They called on hackers worldwide to attack the system at 6 pm (4 pm GMT) when first election results are due.
The Anonymous gave no precise reason for their planned attack, but said in a video message uploaded on Youtube that "the future of Cyprus, the future of the world, the future of all of us" depends on these elections.
Cyprus Police Chief Michael Papageorgiou told a press conference that instructions have been given in order to increase security of the Ministry's computer system into which the results of the counting at electoral centers will be fed.
He also said that Europol and Interpol have been notified and asked to help.
Cypriots went to the polls early in the morning to elect a successor for the outgoing president Demetris Chrisofias.
Polls will close at 6 pm local time while first official results of vote counting are expected to be released at about 6.30 pm and final results about two hours later.