Malala Yousafzai has revealed that she was in an A-level chemistry class when she found out she had won the Nobel Peace Prize.
The Pakistani campaigner, 17, said she was "totally sure" she had not won the award, only for a teacher to appear with the good news.
Malala attends school in Edgbaston, Birmingham after recovering from being shot in the head by a Taliban gunman in 2012.
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