The Health Safety Executive say they are involved in a joint investigation with North Wales Police into the death of a man at a farm in Llanrug near Caernarfon.
They say they are treating the death as a 'construction incident.'
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Two hundred officers were involved in a raid this morning, which saw 20 people arrested.
Research shows over two thirds of us use our gardens for fun instead of growing plants and flowers.
A mostly dry day to come but it will feel chilly with a maximum temperature of 11 degrees.