Rebels and army forces are engaged in heavy fighting near the city of Goma in eastern Democratic Republic of Congo

The M23 rebels told the BBC that their hill positions had been bombarded most of the night by military planes.
The UN said it was prepared to use "lethal force" to protect civilians if the M23 advanced towards Goma.
The fighting comes as its new 3,000-strong intervention brigade to neutralise and disarm the rebels is approaching full strength.