UK gambling and advertising regulators have been forced to repeat warnings to gambling operators regarding their obligations not to promote their business to children.

On Friday, the UK Gambling Commission issued a “rules reminder” for its licensees, with the top two items being “gambling adverts on football club websites” and “gambling logos on under-18s football shirts.”

This reminder followed hot on the heels of a BBC report that found gambling company logos on the websites of 15 football clubs from the Premier League, Championship, League One and the Scottish Premiership. These betting logos appeared on pages aimed at the clubs’ junior supporters and contained links that led directly to the betting sites.

Many of the sites removed the linked logos after being contacted by the BBC, but Shabnum Mustapha, media and public affairs manager at the UK’s Advertising Standards Authority (ASA), told the Beeb that the ASA’s compliance team would be writing to the leagues “to set out clearly our concerns in this area.”