Armenia and Azerbaijan blamed each other for an exchange of fire in a border area on Thursday in which Azerbaijan said one of its soldiers was killed.
The clashes come amid an intensification of diplomatic talks between the two South Caucasus rivals aimed at bringing them back from the brink of another all-out conflict over the disputed Nagorno-Karabakh region.
The enclave is internationally recognised as part of Azerbaijan, but populated mainly by ethnic Armenians and has been the centre of a decades-long dispute.
