A British couple detained by the Taliban in Afghanistan for seven-and-a-half months have described a "huge culture shock" after returning to the UK.

Peter, 80, and his wife Barbie Reynolds, 76, said they were never told why they were being held, nor why they were released in September.

The couple, who have run a charity programme in Afghanistan for almost two decades, told BBC Newsnight the last five months in the UK have been "totally different".

"What we've been through changes us. What we've been through in the last, well decades, but also obviously last year, it reshapes you," said Barbie.

"You think differently and you see things differently than we did when we used to live here before."