Andy Burnham warns of dangers of open-water swimming after ‘terrible family tragedy’ in Sussex

A mother, father and their teenage daughter died after getting into difficulty in water off Shoreham-by-Sea, and a younger girl remains in hospital

Andy Burnham has warned of the dangers of open-water swimming as he called the deaths of a mother, father and their teenage daughter who got into difficulty in water off Sussex a terrible family tragedy".

The prime minister expressed his sympathies to their loved ones as a young girl from the same family remained in a critical condition in hospital.