Libya near 'point of no return', U.N. says as fighting toll rises

TRIPOLI (Reuters) - Factional warfare in Libya is pushing the oil producer "very close to the point of no return", the U.N. special envoy to the country said on Tuesday with efforts to bring about a ceasefire and political dialogue showing no result.

The death toll from two weeks of street fighting between pro-government forces and Islamist armed groups in the eastern city of Benghazi has risen to 170, medics said. Seven people were killed alone on Tuesday, 15 on Monday.