Their caption in a Facebook post on 2 October reads:

“In the small town where the dreaded ‘open borders’ Schengen Agreement was signed.”

Their stop in Luxembourg was part of a European tour, which included meetings with the leaders of populist parties (or “patriots” as they put it) in Belgium, France, Germany and Switzerland.

The tour will have to end soon.

Golding and Fransen are due to appear before Medway Magistrates Court, in southwest England, on 17 October to face charges of causing religiously aggravated harassment, as reported by the Daily Mail, Guardian, Huffington Post, Independent and Sky News.