Tourist saw accused lift 'fist like a hammer' before Monet painting damaged

A court has heard a tourist from New Zealand saw a man lift his "fist like a hammer" to a Monet painting in the National Gallery.

Andrew Shannon of Willans Way, Ongar, in Dublin denies causing €7m worth of criminal damage to the famous French impressionist art work, entitled 'Argenteuil Basin with a Single Sailboat' last year.