Mystery 'sonic boom' rocks hundreds of homes and sets off car alarms in Devon, Somerset and Dorset 

People in Devon, Cornwall and Somerset reported hearing the mystery blast at around 3pm. A spokeswoman for the Ministry of Defence told MailOnline it was not linked to any RAF activity. https://www.dailymail.co.uk/news/article-9384121/Mystery-sonic-boom-rocks-hundreds-homes-sets-car-alarms-Devon-Somerset-Dorset.html?ns_mchannel=rss&ns_campaign=1490&ito=1490