A massive traffic jam in China has slowed vehicles to a crawl for a ninth day near Beijing

A massive traffic jam in China has slowed vehicles to a crawl for a ninth day near Beijing, local media say.

Vehicles, mostly lorries bound for Beijing, are backed up for about 100km (62 miles) because of heavy traffic, road works and break-downs.

The drivers have complained that locals are over-charging them for food and drink while they are stuck.

There has been a boom in road building in China in recent years but vehicle use has soared at the same time.

The stalled traffic stretches between Jining in Inner Mongolia and Huai'an in Hebei province, north-west of Beijing, said the Global Times.

The road works which are obstructing traffic are necessary to repair damage caused by an increase in cargo lorries using the highway, the state-run newspaper said.

They are not expected to be finished until mid-September.

The motorway, part of the Beijing-Tibet expressway, is heavily used by lorries carrying coal from Inner Mongolia.