A group of computer hackers in the Netherlands says it has discovered major security flaws in the electronic voting machines used there.

The Irish Government has bought similar voting machines from the same Dutch manufacturer.

On Dutch television last night, the group, calling itself 'We Don't Trust These Electronic Voting Machines', demonstrated how it hacked into the machines to play video games and stage an electoral fraud.

The hack involves replacing one of the microchips in the machine with one containing programming codes written by the hackers.

The machines were easy to break into. Each of the 8,000 machines used in Holland has the same lock and one key will open all of them.

The hacker group says it obtained its key technical data from the report of an independent expert group, commissioned by the Irish Government, to examine the security of electronic voting machines in Ireland.

The Netherlands is due to hold a general election next month.