Many officials still privately believe Greece will fail to honour its commitments and that the country will need either a third bailout or will be allowed to default.

BBC: EU fiscal summit: Hope comes to the eurozone

Pressure groups have expressed disappointment over the G8's failure to honour those previous commitments.

BBC: You are in: World

Lord Adonis said operators would be expected to honour their existing commitments on services "in full".

BBC: Cost of train travel could fall