The Passport Office chief executive Paul Pugh said the agency was facing a challenging situation the like of which has not been seen in recent years, after apologising for the delays.
He said the Passport Office is dealing with 480,000 applications. Around 90% are being processed within targeted time.
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Heavy rain and wind for Scotland and northern parts this weekend with an amber weather warning issued and travel disruption expected.
Heavy rain continues to affect Western Scotland and Northern Ireland
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