Armenia and the Republic of Azerbaijan have again agreed to respect a humanitarian ceasefire in the Nagorno-Karabakh conflict, effective Monday, the US State Department announced.

Iran PressAmerica: Deputy Secretary of State Stephen Biegun met Saturday with the two countries' foreign ministers and the co-chairs of the Minsk Group, the department said in a joint statement on Sunday.

Washington, along with France and Russia, is part of the Minsk Group, which was formed by the Organization for Security and Cooperation in Europe (OSCE) to be the main mediator in the conflict.

The statement said the ceasefire would take effect at 8:00 am local time (04H00 GMT) on Monday after an earlier ceasefire brought a brief lull Saturday before each side accused the other of violating it.

The conflict in Nagorno-Karabakh, recognized internationally as part of the Republic of Azerbaijan but controlled by Armenian separatists, began September 27.

The US State Department said the Minsk co-chairs and the foreign ministers "agreed to meet again in Geneva on October 29" to seek "all steps necessary to achieve a peaceful settlement of the Nagorno-Karabakh conflict".