There's been huge disruption to the Tyne and Wear Metro system after searing temperatures caused a power blow out on one of its busiest sections.
Passengers were stranded in a tunnel at Gateshead after the train they were on became entangled in overhead lines that were sagging in the heat.
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All of the fires were extinguished but police are appealing for information. They believe they may have been started 'maliciously'.
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