Yerevan in turn accused Azerbaijan of continued shelling – as each side accused the other of attacks in violation of a Russian-brokered truce.
The fighting, over the disputed Nagorno-Karabakh territory, is the worst in the region since Azerbaijan and ethnic Armenian forces went to war in the 1990s over the same region.
Nagorno-Karabakh is a breakaway Azeri region predominantly populated and governed by ethnic Armenians.
Experts and diplomats warned the conflict risks creating a humanitarian disaster, especially if it draws in Russia and Turkey, Reuters reported.
Reuters stated that one of its photographers, in Ganja, saw rescuers working at the scene on Saturday morning of an area that had been shelled and that some houses had been almost leveled.
Hundreds of people have died in a flare-up since September 27 and there were further signs on Saturday that the ceasefire agreed a week ago – to allow the sides to swap detainees and the bodies of those killed – had all but broken down.