Speaking in a debate on passport delays, the Home Secretary, Theresa May MP, told the House of Commons:
Her Majesty's Passport Office is dealing with the highest demand for passports for 12 years, while the surge in demand usually experienced during the summer months started much earlier in the year. As a result, a number of people are waiting too long for their passport applications to be processed.
Ms May was speaking in a Commons opposition day debate called by Labour, in which many MPs highlighted the plight of constituents experiencing passport delays.
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Sunday will be a fine day across much of Scotland and northern England, with much less coastal mist and low cloud than yesterday.
A spokesperson said the lightning strikes had left the "aircraft fuelling system unavailable."
Nearly 1,000 properties have been left without power, and road users have been warned of potentially hazardous conditions.