Nagorno-Karabakh ceasefire under severe strain after new fighting

A ceasefire in the mountain territory of Nagorno-Karabakh was under severe strain on Tuesday after new clashes between Azeri and ethnic Armenian forces in their deadliest fighting since the 1990s. The ceasefire, agreed on Saturday, has had little impact on fighting that began on Sept. 27, despite concerns it could spark a wider conflict involving Russia and Turkey and fears over the security of gas and oil pipelines in the South Caucasus. Officials in...