A 13-year-old boy with Tourette’s has been blocked from boarding a British Airways flight after he shouted the word “bomb”.

Mason Entwistle, from Harwich in Essex, was marched out of Gatwick Airport by armed police after the involuntary outburst on Saturday.

His father, Martyn Entwistle, 39, said the experience had brought him to tears and accused the airline of discrimination.

A spokesman for BA said: “This was an extremely difficult, complex and distressing situation.”

Tourette syndrome is a neurological condition that causes people to make sudden, involuntary sounds or movements, known as tics, which can be triggered by feelings such as stress, excitement or fatigue.