The Christian owners of a Northern Ireland bakery have won their appeal in the so-called “gay cake” discrimination case.

The UK’s highest court ruled that Ashers bakery’s refusal to make a cake with a slogan supporting same-sex marriage was not discriminatory.

The five justices on the Supreme Court were unanimous in their judgement.

The high-profile dispute began in 2014 when the bakery refused to make a cake with the slogan “Support Gay Marriage”.

The customer, gay rights activist Gareth Lee, sued the company for discrimination on the grounds of sexual orientation and political beliefs.

But the bakery has always insisted its objection was to the message on the cake, not the customer.