United States President Donald Trump's National Security Advisor Robert O'Brien has said that Armenia has accepted a ceasefire in Nagorno-Karabakh, while Azerbaijan has not.

Talking to "Face the Nation" on CBSNews.com on Sunday, October 25, O'Brien said White House officials, under the president's direction, spent the entire weekend trying to broker peace between Armenia and Azerbaijan.

"And Armenia has accepted a ceasefire. Azerbaijan has not yet. We're pushing them to do so," the official said.

The Armenian and Azerbaijani Foreign Ministers traveled to Washington for separate meetings with the Secretary of State, Mike Pompeo, on October 23. The sides have already agreed on a humanitarian truce twice before but Azerbaijan blatantly violates the ceasefire to strike Armenian settlements and civilian infrastructure.

Azerbaijan, with help from Turkey and Syrian and Libyan mercenaries deployed by Ankara, started a war against Karabakh (Artsakh) in the morning of September 27. The Armenian side has reported deaths and injuries both among the civilian population and the military. Foreign and local journalists too have been injured in Azeri shelling of towns and villages.

Donations can be made to Hayastan All-Armenian Fund, which has launched a fundraising campaign to support humanitarian efforts in Karabakh.