BBC television and radio journalists began a 24-hour strike over compulsory redundancies on Friday.
The National Union of Journalists (NUJ) voted in favor of industrial action last month after the corporation admitted it was 'likely to be impossible' to avoid redundancies at the BBC World Service and BBC Monitoring, following cuts in government funding.
Members of the National Union of Journalists plan to mount picket lines outside BBC studios and offices across the UK.
A BBC spokesman said the corporation was "disappointed" by the action.
NUJ General Secretary Michelle Stanistreet said the union offered a number of solutions to the dispute, adding that an offer from the conciliation service for peace talks had not been taken up by management.
A further strike has been scheduled for July 29.
