Passport Office workers in Durham are on strike today over staff shortages.
The Public and Commercial Services union voted for the strike after extra staff were drafted in to deal with a 30,000 backlog in applications.
PCS general secretary Mark Serwotka said: “The staffing crisis in the Passport Office has been obvious for everyone to see and it shouldn’t have taken a committee of MPs to force the chief executive to meet us to discuss it.
“We are still a long way off getting a commitment from the agency that it will work with us to put the proper resources in place to ensure these backlogs do not reoccur year after year.”
HM Passport Office Chief Executive Paul Pugh said the 775,000 applications received in June had been the highest ever recorded in a single month and denied claims the agency was in disarray.