One of three people killed in an avalanche in the Scottish Highlands on Thursday was named by the Ministry of Defence as Flight Lieutenant Fran Capps, 32.
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On Friday, police said it appeared the girl had shot herself in the face with the weapon.
The showers will be slow-moving, heavy and thundery at times, particularly in central and eastern areas.
Ratings agency Moody's said victory for Brexit would "herald a prolonged period of uncertainty" for the UK.