As the senior officials of Turkey and Russia were exchanging views on Karabakh, Armenian residents of Kalbajar region were burning their houses before leaving the area as part of the deal with Azerbaijan.
Earlier in the day, Baku shot down two Armenian warplanes, Azerbaijan's Defence Ministry said.
Azerbaijan has now shot down two Armenian Su-25 fighter jets using its S-300 missile defence system.
President Ilham Aliyev said Azerbaijan's army would retaliate against Armenia and "take revenge on the battlefield" after the shelling on a residential area in Ganja flattened rows of houses.
The enthusiasm Azerbaijanis display for the Turks appears mutual: hundreds have been driving around Istanbul in organised rallies and flying the two majority Muslim nations' flags since the latest occupied Karabakh hostilities resumed.
President Ilham Aliyev says missiles were launched from Armenia's Vardenis district, away from contested Karabakh region, raising civilian death toll to 41 with over 200 people wounded.
Baku says Yerevan violated humanitarian ceasefire with attacks on residential areas of Ganja city, leaving at least nine civilians dead and dozens wounded.
Armenian soldiers hit Azerbaijan's second-largest city, Ganja, away from the flashpoint occupied Karabakh region, with Baku threatening retaliation.
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