Azerbaijan shot down an Armenian warplane on Saturday, the country's Defense Ministry said.
A statement said the Armenian combat aircraft was flying over Azerbaijani positions in the Gubadli direction of the front.
The ministry did not mention the type or model of the plane and said it was shot down on Saturday afternoon.
A separate statement said an Armenian drone was destroyed in the Aghdere region.
The unmanned aerial vehicle (UAV) belonging to Armenian occupiers was shot down at about 15:25 [1125GMT] after attempting to carry out a flight in the direction of the Aghdere region and, the ministry said.
Since clashes erupted on Sept. 27, Armenia has repeatedly attacked Azerbaijani civilians and forces, even violating two humanitarian cease-fires in the past two weeks.
The latest humanitarian truce in Upper Karabakh, or Nagorno-Karabakh, an internationally recognized territory of Azerbaijan, came into force last Saturday.
Relations between the two former Soviet republics have been tense since 1991, when the Armenian military occupied Upper Karabakh.
Four UN Security Council resolutions and two from the UN General Assembly, as well as international organizations, demand the withdrawal of Armenian forces from the occupied territory.
In total, about 20% of Azerbaijan's territory-including Nagorno-Karabakh and seven adjacent regions-has been under illegal Armenian occupation for nearly three decades.
The Organization for Security and Co-operation in Europe (OSCE) Minsk Group-co-chaired by France, Russia, and the US-was formed in 1992 to find a peaceful solution to the conflict, but to no avail. A cease-fire, however, was agreed to in 1994.
World powers, including Russia, France, and the United States, have called for a new and lasting cease-fire. Turkey, meanwhile, has supported Baku's right to self-defense and demanded the withdrawal of Armenia's occupying forces.
