Russia objected to a draft section that cited grave concern over military activities around Ukraine's nuclear plants, in particular Zaporizhzhia, reports BBC.
The 2022 meeting, which was due in 2020, was delayed because of the pandemic, took place on 1st August. The failure to agree a joint declaration followed a four-week UN conference in New York.
Russia opposed a section of the text expressing concern over military activities around Ukrainian power plants - including the Zaporizhzhia nuclear plant, which Russia seized early on in the war in Ukraine.
The draft section, in addition, discussed the loss of control by the competent Ukrainian authorities over such locations as a result of those military activities, and their profound negative impact on safety.
Russia's representative, Igor Vishnevetsky, said the draft final text lacked balance.
"Our delegation has one key objection on some paragraphs which are blatantly political in nature," he said - adding that other countries also disagreed with the text.
The final document needed approval of all countries at the conference. A number of countries, including the Netherlands and China, expressed disappointment that no consensus had been reached.
The International Campaign to Abolish Nuclear Weapons said that "in a year when a nuclear-armed state invaded a non-nuclear armed state, a meeting of nearly all countries in the world failed to take action on nuclear disarmament", while the Washington-based Arms Control Association said the conference represented a "missed opportunity to strengthen the treaty and global security".
Bd-pratidin/Ishrar Tabassum