A seventh man has been arrested following a shooting on Tyneside.
A 34-year-old man has been arrested on suspicion of attempted murder and remains in police custody.
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The constituency of Washington and Sunderland West includes the UK's largest car plant, which was opened by Nissan in 1984.
This seat was formed prior to the 2010 General Election, taking in Sunderland city centre and the Ryhope area to the south.
The constituency of Stockton South includes relatively affluent areas like Yarm and Eaglescliffe.