The invention could prove to be a major headache for security services in Britain

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ISIS' research and development department in the terror group's de facto Syrian capital, Raqqa, is believed to be producing the vehicles at the same time as US internet giant Google attempts to perfect the same technology.

If successful, the invention could prove to be a major headache for security services in Britain and throughout Europe and North America, where self-driving cars are expected to become commonplace.

Thousands of driverless cars are expected to be on Britain's roads within the next few years and there is a very real prospect jihadis could prey on the new technology to launch attacks in the UK.