Mexican fast food chain Chipotle has seen the biggest shareholder revolt over executive pay of any US firm this year.

A total of 77% of shareholders in the chain voted against the plan.

Last year co-chief executives Steve Ellis and Montgomery Moran were paid $25.1 million (£15 million) and $24.4 million.

Chipotle has more than 1,600 stores, making it one of the fastest-growing restaurant chains in the US.

Dieter Waizenegger, chair of CtW Investment Group, which advised shareholders to vote against the plan, said: "Chipotle's unbalanced approach to human capital management poses unacceptable risks to shareholders."