US
Both countries accuse the other of using the banned weapons in fierce clashes over the disputed province
Azerbaijan’s president warned of 'new victims and new bloodshed' from fighting that broke out on September 27
Each side has accused the other of targeting civilian areas with shelling, missile and rocket attacks
After the warring sides accused each other of fresh ceasefire violations
The ceasefire meant to halt fighting to allow both countries to swap prisoners and war dead
Armenia fired rockets with white phosphorus on civilian settlements, says Azerbaijani Defence Ministry
Both countries agreed to start negotiating a peaceful solution to the territorial dispute says Russia's top diplomat
Yerevan rules out talks between the two countries as long as clashes are ongoing
Ali Alizada lambasts Armenia for using military aggression to consolidate status quo in Nagorno-Karabakh
As the US, France and Russia were due to meet in Geneva to try to avert a wider war in the South Caucasus