Thousands of vehicles stuck in 120km China traffic jam
More than 10,000 vehicles are stuck in a 120km (75-mile) traffic jam on China's Beijing to Tibet motorway.
The majority of the vehicles stuck in the jam, which began on Tuesday, are coal trucks heading to the capital.
A 100km traffic jam that had lasted nine days on the same motorway was cleared just over a week ago.
The BBC's Martin Patience reports.