No-one knows what caused the noises (Picture: Metro)

People across the country were left speculating after hearing loud ‘mystery bang noises’ yesterday night.

The sounds were so powerful they reportedly shook windows, with the Metropolitan Police saying the only possible source was a Croydon firework display.

But not everyone was buying that explanation after the noises were heard as far away as Glasgow at around 10pm.

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@VirtualAstro prob RAF scramble, we're back to Cold War tensions — Mat Keeling (@keelingover) November 29, 2014

‘Prob RAF scramble, we’re back to Cold War tensions,’ tweeted @Keelingover, who thought the Russians may have been flying close to British airspace.

@VirtualAstro was also convinced the noise was caused by an aircraft and added: ‘My dogs are freaking out! Gotta be sonic booms or something if heard over such a large area by so many.’



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My dogs are freaking out! Gotta be sonic booms or something if heard over such a large area by so many #omgweareallgoingtodie — Virtual Astronomer (@VirtualAstro) November 29, 2014

The Ministry of Defence said no jets had been sent into the air yesterday, according to MailOnline.

This is despite loud noises being reported last month in Kent when RAF jets cut off a foreign plane in UK airspace.

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I managed to merge the 3 clips from last nights loud bangs.. Taken from croydon. You decide what you think it is.. http://t.co/cyRsqKqlna — Angie (@xxangie87xx) November 30, 2014

It has been a week of unidentified loud noises after one was reported in Manchester and another at an army training base in Catterick.

In both occasions no explanation was given for the sounds despite police investigating.