Greater Anglia said trains were not being affected by fuel shortages and there were no plans to change their normal timetables this weekend.

Meanwhile bus company First, which operates over 60 routes in Norfolk and Suffolk, did not report any delays.

A spokesman for First buses said: 'We hope that the Government will see public transport as an efficient user of fuel and therefore part of the solution to keeping the economy moving in the event of any industrial action.

'We are continuing to support our trade association in lobbying the Government for priority supply status.'