Video shows moment hazmat-suited firemen swarm British Airways plane after passengers and staff 'collapse in the aisles'

A mum claims a British Airways flight turned to 'pandemonium' when passengers and 'panicking' cabin crew fell ill - before the plane was swarmed by hazmat suit-clad firefighters. Melanie Wells flew out for the £7,500 all-inclusive, luxury TUI package holiday of eight days in Egypt alongside her 19-year-old daughter Imogen on December 23.

However, after boarding the flight at London Gatwick Airport, the 61-year-old developed a bad headache, which she initially put down to the 'extreme temperature' on the plane. But within two hours of taking off, Melanie claims passengers and crew members had fallen 'seriously ill', with members of staff collapsing down the aisle.

The flight then made an emergency landing into Venice, Italy, where the plane swamped by emergency workers in hazmat suits wit