The Russian Defense Ministry accused Azerbaijani troops of violating the ceasefire in the Martuni region of Nagorno Karabakh (Artsakh).
No casualties were reported, said the Russian side, adding that an investigation into the details of the incident was underway.
Earlier, the Russian Defense Ministry confirmed that the Azerbaijanis occupied a hill near the Lachin corridor connecting Karabakh to Armenian which has been blocked by Azerbaijan for more than three months.
The Ministry said back then that the peacekeepers have demanded that the Azerbaijan “withdraw units of the national armed forces to their previously occupied positions,” added the statement.
The Azerbaijani Defense Ministry said earlier in the day that its troops “took necessary measures” to stop Armenia sending weapons and military personnel through dirt roads running parallel to the blocked section of the Lachin corridor.