Azerbaijan and Armenia in heavy clashes on border region
Heavy fighting between Azerbaijani and Armenian forces broke out in the disputed Nagorno-Karabakh region on Sunday.
Armenia and Armenian-controlled Nagorno-Karabakh declared martial law, while Azerbaijan ordered its military to mobilise.
Both sides blamed each other for the worst escalation since 2016, amid reports of casualties.
Al Jazeera's Charlotte Bellis reports.