Azerbaijan has admitted mistakenly shooting down a Russian Mi-24 military helicopter over Armenia, killing two crew members and injuring a third.
In a statement, Azerbaijan apologised, offering to pay compensation.
Russia said a missile downed its Mi-24 accompanying a column of Russian troops in Armenia, where Russia has a base. It comes amid fierce fighting between Azerbaijan and Armenian separatists for Nagorno-Karabakh. But the helicopter was not downed near those clashes.
Nagorno-Karabakh is internationally recognised as part of Azerbaijan, but has been run by ethnic Armenians since 1994.
In the statement, Azerbaijan’s foreign ministry said the Russian Mi-24 was shot down at 18:30 local time “on the Nakhchivan section of the Armenia-Azerbaijan state border”.