Danish fishing groups have criticised the UK's decision to ban sandeel fishing in its waters, claiming it breaches the Brexit agreement and could have serious implications for their industry. The ban affects up to 75% of fishing grounds and could potentially destroy the sandeel fishery. Despite the sandeel population being well managed and sustainable fishing of approximately 167,000 tonnes of sandeel being scientifically supported, the UK has decided to implement the ban from 1 April. Denmark is calling for the UK to face consequences for breaking the agreement, suggesting reciprocal restrictions on market access.