THE police launched an investigation yesterday into the violent clashes on Tuesday night which have been described as a “free for all” by Chelsea fans who were viciously attacked by West Ham supporters with coins and chairs.

Blues fans were furious with West Ham for failing to adequately keep them safe both inside and outside the London Stadium following Wednesday night’s 2-1 victory over Chelsea in the League cup.

Away supporters spoke of coins and chairs being hurled at them inside the stadium and how they were attacked when leaving the ground.