Southern Water is being investigated amid concerns the spill could have dire impact on rare sea life

Southern Water is investigating after millions of contaminated plastic beads washed up on Camber Sands beach, risking an “environmental catastrophe”.

The biobeads could have a dire impact on marine life, the local MP has said, with fears rare sea life, including seabirds, porpoises and seals, could ingest them and die.

Helena Dollimore, the MP for Hastings and Rye, suspects the beads may have been spilled by a local water treatment centre and has written to the Southern Water chief executive, Lawrence Gosden, demanding an explanation.

Camber Sands, in East Sussex, is one of England’s most beloved beaches, with rare dune habitat and vast stretches of golden sand.