Footage has emerged which appears to show a truck, apparently driven by Abdul Waheed Majeed on his way to carry out a suicide attack in Aleppo.
Majeed is said to have driven a lorry into a jail in Aleppo and detonated a bomb last week, and is thought to be the first Briton to stage a suicide attack in the war-torn state.
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The PM confirmed an end to the country's existing trading arrangements as she outlined her 12 priorities for negotiating Britain's EU exit.
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A judge said those bringing the case can remain anonymous after they said they feared for their safety if their identities were revealed.