The A19 southbound is closed between the junctions with the A1130 and the A174, due to a serious accident. It is expected to reopen at 9.45am.
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Middlesbrough kept their unbeaten re-entry into the Premier League going drawing 0-0 at West Brom.
He has agreed a two-year contract at St. James' Park and becomes the tenth new face in the Magpies' first team squad this summer.
On the back of three consecutive Championship wins, the Magpies sit fourth, poised to move into the automatic promotion places.