Five soldiers are reported to have been killed in clashes in Azerbaijan’s breakaway region of Nagorno Karabakh.
Armenia’s defence force says four Armenian soldiers have been killed, and it claims an Azerbaijani soldier has also died.
Armenia claims a group of Azerbaijani soldiers entered the region late on Friday.
There has been no official comment on the reports from Azerbaijan.
It is reported an Azerbaijani soldier was also killed in fighting on Wednesday.
The latest clashes come after the breakdown of international efforts to strike a peace accord.