Blackwall tunnel shut southbound

As of about 18:20. I was northbound and all north traffic is diverted through the southbound. All southbound traffic is making an orderly tailback for miles up the A12.

Also, there was an accident blocking the M25 anti-clockwise south of the A224 junction (J4). Edit: Vehicle fire, now cleared.

Closed untill 5am monday i belive , then closed north bound for the next 3 years or so from 21.00 to 5 am .