The Port of Tyne has confirmed that no-one has been injured in the fire at the site in South Shields.
Around 50 firefighters are at the scene.
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Police are appealing for information following four incidents of indecent exposure in several areas of Northumberland.
Gregg was previously found guilty of nine counts of indecent assault against four boys aged between 11 and 14 over three decades.
A Middlesbrough primary school has been closed for the day after a fire broke out, causing damage to a corridor and staff office.