A194 Eastbound closed due to serious accident, one vehicle involved at Barnes' Road.
Emergency Services are on the scene dealing with the incident, affecting traffic out of South Shields.
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Sandiford, a former legal secretary originally from Redcar, was convicted of drug smuggling offences and sentenced to death in 2013.
Durham Crown Court heard that one of the male victims suffered a triple-fractured jaw, while left lying in the gutter, unconscious.