Terrified families fleeing in fear of ethnic cleansing after the collapse of Nagorno-Karabakh are running out of water and fuel during the desperate two-day journey to neighbouring Armenia.David, an 18-year-old refugee said he feels “empty inside” after being forced to leave his home.Nagorno-Karabakh is an enclave of ethnic Armenians surrounded by Azerbaijan.The area had enjoyed de facto independence for three decades despite being internationally recognised as being part of Azerbaijan.Azerbaijan launched a lightning military operation earlier this month to retake the enclave.More than 90,000 Karabakh Armenians – around three-quarters of the total population – have now left their homes, many leaving behind all their belongings.