US President Donald Trump on Sunday (local time) said that Washington is looking into what can be done to stop the flare-up of tensions in the disputed region of Nagorno-Karabakh.

Military hostilities between Armenia and Azerbaijan erupted along the region’s contact line on Sunday morning, with each side blaming the other for putting civilian lives in danger.

“We are looking at it very strongly. We have a lot of good relationships in that area, we will see if we can stop it,” Trump told reporters at the White House.

The US State Department said in a statement addressing the Nagorno-Karabakh escalation that the involvement of any external party would be “deeply unhelpful and only exacerbate regional tensions.”

Washington urged the conflicting parties to cooperate with the Minsk Group co-chairs, which, aside from the US, include France and Russia, with the aim to “return to substantive negotiations as soon as possible.”