The North Circular road was closed earlier following a collision between two lorries near Hanger Lane. Access to the M40 has also been affected. These are the latest pictures from the scene.
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Research into property prices has found London has more areas with an average price of more than £1m than anywhere else in the UK.
A permanent memorial will be unveiled today in memory of murdered Middleton soldier Lee Rigby.
The desk and chair where Charles Dickens sat to write his final novels have been bought for the nation using a national heritage grant.