Station staff working for the rail operator Greater Anglia have voted to go on strike in a row over flexible working.
Members of the Rail Maritime and Transport Union on the West Anglia route backed a campaign of industrial action.
The union has about 100 members involved in the dispute. Its General Secretary Bob Crow has accused Greater Anglia of ignoring agreed procedures.
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Increasing cloud and rain overnight. Blustery and cold tomorrow.
Events are taking place in Cambridge, Norwich, Colchester, Southend and Lowestoft today, to mark Holocaust Memorial Day.
Cloud will increase through the day with rain arriving by dawn.