Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. UN: Consequences Remain Decades After Chernobyl Disaster RFE/RL The United Nations says persistent and serious long-term consequences remain more than 30 years after the explosion and fire at the Chernobyl nuclear power plant in Ukraine. The world body is marking International Chernobyl Disaster Remembrance Day on April 26, the 34th anniversary of the accident that spread a radioactive cloud over large parts of Belarus, Ukraine, and Russia. The anniversary is being marked after fires recently burned in the 30-kilometer exclusion zone around the plant, raising concerns about the potential release of radioactive particles into the air. .