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Irish police are investigating a possible illegal horse race near Blarney, County Cork.

Around 60 to 70 spectators in a number of cars and vans were seen following harness racers on the main Cork to Mallow road on 5 May.

A video of the race, which is associated with the traveller community, has been uploaded to social network sites.

One man was arrested under the public order act and later released.

The BBC's Ireland correspondent Mark Simpson reports.