The fourth person killed in an avalanche in the Scottish Highlands has been named by police.
Rachel Majumdar, 29, was a doctor working at Harrogate District Hospital in North Yorkshire.
She was originally from Merseyside and was most recently living in Leeds, Northern Constabulary said today.
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The threat level has been raised to critical by MI5's Counter-Terrorism Analysis Centre.
Prime Minister Theresa May announced the decision from Downing Street.
A man, apparently armed with a small axe and a large stick, was detained close to the event and police cleared the area as a precaution.