Fog patches may have caused pile-up
Drivers in the Kent bridge pile-up might have been caught out by the irregular nature of the fog patches this morning, according to forecasters.
Some areas of Kent were relatively free of fog during the early rush-hour but there were also some dense patches in places, said Paul Mott, a senior forecaster with MeteoGroup, the Press Association's weather forecasting company.
He went on: "It could well be that drivers were caught by surprise. In some places in Kent visibility was not too bad, with fairly clear areas where you could see for up to 10 kilometres.
"But there were also some patches of dense fog, with visibility down to below 100 metres in places."
Mr Mott said areas of Kent , Essex and parts of London suffered from some areas of this dense, patchy fog today.
He went on: It looks as if the visibility was at its worst between 4am and 8.30am today, but there would also have been quite a lot of areas relatively clear of fog."