Shares in British Airways, the UK airline, fell sharply after the GMB union said it would recommend its members vote against the company's proposed rescue package for its £2.1bn (€3.1bn) pension deficit.

The airline's shares dropped to 551p, or 1.3%, by close of trading on Friday. Earlier in the week they had risen as high as 671p, an eight-year high, when BA said it had received agreement from its unions on the plan.