130 teams from fire services all over the country have started competing in a two-day rescue challenge at Lincoln University.
They are showing off their rescue skills in five different scenarios.
Here they are practising recovering casualties from confined spaces in a mocked up collapsed building:
Another challenge sees teams competing to recover casualties who are injured while trapped at height on the side of a building.
With ladders not allowed they have no choice but to bring in extra ropes to reach those who are hurt and lower them to safety:
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It will be another misty and cloudy start to the day.
Another rather cloudy day, with the easterly wind continuing to bring low cloud in from the North Sea.
Some mist and hill fog tonight. Brightening up on Thursday.