A 43-year-old man from North Tyneside, has been bailed pending further enquiries and searches at the North Tyneside address are now complete
But a 46-year-old man from Seaham, County Durham remains in custody at this time. Searches at the address in County Durham are now complete
So far, police have recovered a range of items from the addresses of all five of the people arrested today including computers, laptops and mobile phones.
The five were arrested under the Public Order Act, publishing or distributing written material which may stir up racial hatred.
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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.