FIFA has responded to a damning investigation about World Cup hotels in Qatar

World football's governing body has issued a warning following the media probe

FIFA said it would remind the hotels of their non-discrimination policy

Some refused to allow gay couples to stay because of their sexuality

FIFA has threatened to cancel the contracts of hotels and other service providers in Qatar for this year's World Cup that discriminate against gay people after an investigation revealed some had refused to allow same-sex couples to stay.

The survey conducted by Danish and Swedish media also found World Cup hotels had asked customers to modify their behaviour during their visit, including one insisting that patrons do not 'dress gay'.