UK brands act to cut catch of 'near-threatened' yellowfin tuna

Voluntary action of companies including Tesco and Princes aims to put pressure on regulatory body to tackle overfishing

British supermarkets and brands, including Tesco, the Co-op and Princes, are stepping up action to cut yellowfin tuna catches in the Indian Ocean, amid warnings the stock is in a critical" state.

The effort, by companies reliant on healthy fish stocks, represents a counterintuitive effort to force regulators to act, rather than the other way around.