Armenian human rights chief Kristine Grigoryan said Azerbaijan hides real number of POWs.

'Azerbaijani authorities claim they had 17 Armenian captives whom they returned, but we believe it is more likely that there may be other Armenian servicemen held captive in Azerbaijan in September,' she noted.

'We will continue to work because these people should be able to get legal assistance. Earlier, more than 20 people claimed to have seen their sons on video,' she added.

17 servicemen who were captured as a result of Azerbaijani aggression on the sovereign territory of Armenia in mid-September this year returned from Azerbaijan on October 4.