Flights begin taking off from Luton airport again after fire, as officials suggest blaze accidental – as it happened

Birkenstock to float in New York with market value of $8.6bn (7bn), as IMF/World Bank hold annual meetings in Marrakech

• Luton airport closed and flights suspended after huge fire in car park

A major car park fire that forced London's Luton Airport to suspend flights on Wednesday appears accidental, authorities said.

The local fire chief Andrew Hopkinson told reporters:

We've got no intelligence to suggest it's anything other than an accidental fire that started in one of the vehicles.

Timing is everything for an IPO and Birkenstock wants to capitalise on being in the film and fashion spotlight. As the stylish set have put sales on the front foot, and the Barbie effect has boosted the brand further, it's helped the company achieve this heady valuation. The company has been super-savvy over the past few decades and has turned sandals with hippy connections into It' shoes, helped by collaborations with fashion designers and endorsements by celebrities.