Sewage spills considered illegal by the European Union are getting worse in Britain after Brexit, The i Paper has found.

The EU previously acted as a watchdog on water pollution that could impose fines of millions a week if rules were not being followed.

However, the regulator that replaced its role in Britain – the Office for Environmental Protection – does not have the same powers, according to experts.

The bloc has also taken steps to strengthen its wastewater laws as the UK lags behind, analysts said.