Azerbaijan and ethnic Armenian forces have fought new clashes in and around the Nagorno-Karabakh region, with the United States, France and Russia due to meet in Geneva to try to avert a wider South Caucasus war.
Azerbaijan said the city of Ganja had been shelled early on Thursday by Armenian forces and that one civilian had been killed in the Goranboy region.
It said other villages were fired on by ethnic Armenian forces.
Armenia meanwhile on Tursday removed the head of its National Security Service, Argishti Kyaramyan, with the sacking reported by Interfax news agency citing a presidential decree but without providing further details.
Azeri authorities have reported 30 civilian deaths since fighting broke out on September 27 over Nagorno-Karabakh, a mountain enclave which under international law belongs to Azerbaijan but is populated and governed by ethnic Armenians.
Azerbaijan also says 143 civilians have been wounded but has not disclosed information about its military casualties.
Authorities in Nagorno-Karabakh said the tactical situation had not changed significantly overnight, with artillery and rocket fire reported in some areas and the main administrative centre, Stepanakert, hit by shelling.
Nagorno-Karabakh, which broke away from Azerbaijan's' control as the Soviet Union collapsed, said on Wednesday its military death toll since September 27 was 320.
It also says 19 civilians have been killed and many wounded.
France, the United States and Russia are co-chairs of the Organization for Security and Co-operation in Europe's Minsk Group that mediates over Nagorno-Karabakh.
They hope to persuade the warring sides to agree a ceasefire after the deadliest fighting over Nagorno-Karabakh in more than 25 years.
Armenia is not sending its foreign minister to the talks in Geneva but Azerbaijan's foreign minister is expected in attend.
French, US and Russian representatives are expected to meet the Armenian foreign minister in Moscow next Monday.
The fighting has raised international concern that Turkey, a close ally of Azerbaijan, and Russia, which has a defence pact with Armenia, could be sucked into the conflict.
It is watched closely abroad partly because of Nagorno-Karabakh's proximity to pipelines that carry Azeri oil and gas to international markets.