The European Union will publish an action plan later this year to rein in illegal and “unregulated” online gambling.

The paper will include measures to clamp down “on the many illegal websites, often hosted in offshore havens,” that offer gambling services, Michel Barnier, the EU internal market chief, said in a speech in Brussels today.

The European Commission, the 27-nation EU’s executive arm, will also propose measures to “effectively regulate and supervise” legal gaming sites, Barnier said. The action plan will be published “in the autumn,” he said.

To contact the reporter on this story: Jim Brunsden in Brussels at jbrunsden@bloomberg.net

To contact the editor responsible for this story: Anthony Aarons at aaarons@bloomberg.net