Fierce fighting between Armenian and Azerbaijani forces is raging on in the disputed Nagorno-Karabakh region, with each side claiming an upper hand.
The region is internationally recognised as part of Azerbaijan but is run by ethnic Armenians.
The separatist authorities there said 31 of its soldiers had now died, and some lost positions had been retaken.
Azerbaijan said 26 civilians had been injured in heavy Armenian shelling. It earlier reported at least five deaths.
Both Armenia and Azerbaijan have already declared general mobilisation and martial law in some areas.
The fighting is the heaviest seen in the long-running conflict since 2016, when at least 200 people were killed in clashes.
It has sparked international calls for diplomacy, amid fears that regional powers could be drawn into the conflict in the strategically important Caucasus region.
Turkey has already declared its support for Azerbaijan, while Russia – which has military bases in Armenia – called for an immediate ceasefire.
The territorial dispute over Nagorno-Karabakh is one of the world’s oldest conflicts.
When Nagorno-Karabakh broke away from Azerbaijan in the early 1990s, tens of thousands died in fighting, and many ethnic Azerbaijanis were forced to flee their homes.
It is now a de facto independent region, relying heavily on support from Armenia. But it is not recognised by any UN member, including Armenia.
Nagorno-Karabakh – key facts
- A mountainous region of about 4,400 sq km (1,700 sq miles)
- Traditionally inhabited by Christian Armenians and Muslim Turks
- In Soviet times, it became an autonomous region within the republic of Azerbaijan
- Internationally recognised as part of Azerbaijan, but majority of population is ethnic Armenian
- An estimated one million people displaced by 1990s war, and about 30,000 killed
- Separatist forces captured some extra territory around the enclave in Azerbaijan in the 1990s war
- Stalemate has largely prevailed since a 1994 ceasefire
- Turkey openly supports Azerbaijan
- Russia has military bases in Armenia
What’s the latest from the battlefield?
On Monday, authorities in Nagorno-Karabakh said another 15 of its soldiers had been killed. It had reported 16 fatalities among the military on Sunday.
More than 100 people have been wounded.
The self-proclaimed republic also said its forces had destroyed four Azeri helicopters, 36 tanks and armoured personnel vehicles, according to the Armenpress news agency.
It also said it had killed many Azerbaijani troops, but this could not be verified.
Azerbaijan’s defence ministry confirmed the loss of one helicopter but said the crew had survived, and reported that 12 Armenian air defence systems had been destroyed. It denied other losses.
Azerbaijan said 26 civilians were injured in Armenian shelling, accusing Armenia of targeting densely populated areas.
On Sunday, Azerbaijan said five members of the same family had been killed by Armenian shelling.
In July, at least 16 people died in border clashes, prompting
in the Azerbaijani capital Baku, where there were calls for the region’s recapture.
The international reaction
- UN Secretary-General Antonio Guterres said he was “extremely concerned”, urging both sides to stop fighting
- Russia’s foreign minister held urgent talks both with the Armenian and Azeri leadership
- France, which has a large Armenian community, called for an immediate ceasefire and dialogue
- Iran, which borders both Azerbaijan and Armenia, offered to broker peace talks
- President Donald Trump said the US was seeking to stop the violence
What’s the background?
In 1988, towards the end of Soviet rule, Azerbaijani troops and Armenian secessionists began a bloody war which left Nagorno-Karabakh in the hands of ethnic Armenians when a truce was signed in 1994.
Swathes of Azeri territory around the enclave are also under Armenian control.
Negotiations have so far failed to produce a permanent peace agreement, and the dispute in the region remains one of post-Soviet Europe’s “frozen conflicts.”
Karabakh is the Russian rendering of an Azeri word meaning “black garden”, while Nagorno is a Russian word meaning “mountainous”. Ethnic Armenians prefer to call the region Artsakh, an ancient Armenian name for the area.
Over the years both sides have had soldiers killed in sporadic breaches of the ceasefire. Landlocked Armenia has suffered severe economic problems due to the closure of borders with Turkey and Azerbaijan.
Russia, France and the US co-chair the Organization for Security and Co-operation in Europe’s Minsk Group, which has been attempting to broker an end to the dispute.