Today marks the anniversary of the Chernobyl nuclear disaster. On April 26, 1986, technicians conducting a test inadvertently caused the fourth reactor to explode. Several hundred staff members and firefighters then tackled a blaze that burned for 10 days and sent a plume of radiation around the world in the worst-ever civil nuclear disaster. More than 50 reactor and emergency workers were killed at the time. Authorities evacuated 120,000 people from the area, including 43,000 from the city of Pripyat. Below, recent images from Chernobyl and nearby ghost towns within the exclusion zone, as well as memorials held in Ukraine and Russia.
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The first half of the Chernobyl New Safe Confinement, or NSC, an arch that which will cover the reactor building, is seen after it was pushed to its site at the Chernobyl Nuclear Power plant on April 3, 2014. The New Safe Confinement is being assembled in two halves, each comprising several arched sections, as the assembly of the second half is scheduled to take place by the end of 2014. On April 26, 1986, an explosion during testing sent radioactive fallout into the atmosphere that spread across Europe, particularly contaminating Belarus, Ukraine and Russia. AFP PHOTO/ ANATOLIY STEPANOV / AFP PHOTO / ANATOLIY STEPANOV