The US Department of State has expressed “deep concern” aboutthe escalation of violence along the line of contact that resulted insignificant casualties since July 31, spokesperson Jen Psaki said at abriefing.

"We certainly extend our condolences to the families ofthose killed or injured and call on the sides to take - call on all sides totake immediate action to reduce tensions and respect the cease-fire," shesaid. "There can be no military solution to this conflict."

She added that retaliation and further violence will only makeit more difficult to bring about a peaceful settlement.

"The U.S remains committed, as a co-chair of the MinskGroup, to helping all sides reach a lasting settlement to the Nagorno-Karabakhconflict," she said.

"We have traditionally been supportive of meetings to havea dialogue about these issues," she added.

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