Commuters are facing delays on the A406 North Circular near Redbridge Roundabout following a collision this morning.
The road was blocked following a crash, with lane two of the off-slip southbound being obstructed.
TfL said all lanes were now open but residual congestion would take time to clear.
The 0729 and 0851 services between Gidea Park and Liverpool Street has also been cancelled due to a train fault.
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