Factbox-Azerbaijan launches 'anti-terrorist operation' in Karabakh

People run as gunfire and explosions are heard in Stepanakert, called Khankendi by Azerbaijan, in the Nagorno-Karabakh region, September 19, 2023, in this screengrab obtained from a handout video. Artsakh Public TV/Handout via REUTERS

TBILISI (Reuters) - Ethnic Armenian separatist authorities on Tuesday reported a major escalation of hostilities in Azerbaijan's Nagorno-Karabakh region, as Azerbaijan launched an offensive. Here are some facts about the fighting:

WHAT DOES AZERBAIJAN SAY?