Double decker catches fire on London's North Circular
A double decker bus has been destroyed after it caught fire on London's North Circular road.
London Fire Brigade said it was called to reports of a bus alight on the A406 at the Woodford New Road junction, South Woodford, at 06:58 GMT.
Three fire engines attended the blaze, and the fire was brought under control almost an hour-and-a-half later.
London Ambulance Service said nobody was injured, but there were tailbacks stretching four miles (6.4km).
The Southend Road stretch of the North Circular is shut eastbound between Waterworks roundabout and the Charlie Brown roundabout.
Transport for London (TfL) said there were no passengers on the bus at the time and there would be a full investigation into the incident.
The Metropolitan Police said an investigation was under way to establish the cause of the fire.
Meanwhile, Tube passengers endured more rush-hour travel disruption, with two lines part-suspended.
The Victoria Line was suspended between Victoria and Seven Sisters in north London. Transport for London (TfL) said the suspension was due to late-running engineering work at Finsbury Park.
Later in the rush-hour, a suspension caused by a signal failure affected the section of line between Victoria and Highbury and Islington, leading to severe delays.
London Underground's network services director Nigel Holness said: "Both problems are now resolved and we are working hard to return services to normal."
A signal failure led to the Bakerloo Line being suspended between Elephant & Castle and Lambeth North, in south London.
Delays on the Jubilee Line were caused by a faulty train at Finchley Road, in north London.
TfL said: "We apologise to customers for delays to their journeys."