THE family of a teen girl who died from a severe allergic reaction to a Pret a Manger sandwich on a British Airways flight have demanded answers.

Natasha Ednan-Laperouse, 15, collapsed on a flight from London to Nice after buying an artichoke, olive and tapenade baguette at Heathrow.

Her dad Nadim, a millionaire owner of Wow Toys from Fulham, tried to save schoolgirl Natasha by giving her two doses of drugs and administering an EpiPen.

She died in hospital in France.

An inquest will take place this week with Pret bosses set to testify.

Nadim said: "As a family now of three, my wife, son and I are still trying to adjust to life without our beloved girl. It’s a daily battle and the pain is indescribable.

"Everything we say and do is a reminder that she isn’t with us, her empty bedroom, school uniform hanging in her wardrobe, her holiday bag packed for her holiday in Nice has never been unpacked. We can’t bear to."

The inquest could lead to product labelling laws being ramped up.

It is believed the Pret baguette had sesame seeds baked into the dough.

Despite being a potentially deadly allergen, a loophole means companies do not have to list it if the food is prepared on the same day.

British Airways bosses will also feature at the inquest to discuss safety procedures and staff training.

A Pret spokesman said the company was "deeply saddened" by the tragedy.