The man was working inside the trench in the village of Letterston when the sides caved in. A specialist rescue crew is at the scene, along with firemen and paramedics.
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For the Poppy Appeal 2016 The Royal British Legion is calling on the nation to 'Rethink Remembrance.'
A former asylum seeker and tennis player from Swansea has won a sports award as part of Black History Month.
A mostly dry day with a little light rain or drizzle over hills.