Chernobyl 30 Years Later: A Tour Inside the Ghost Town The clean-up operation around the worst nuclear disaster is still continuing
Today marks the 30th anniversary of the Chernobyl disaster in Ukraine, the worst nuclear accident in history.
In the early hours of April 26, 1986, Soviet engineers inadvertently set off a catastrophic explosion in reactor 4 of the plant while running a routine test. The blast and subsequent fire that raged for days spread radioactive contamination across huge areas, reaching as far as the United States.
Over 3 million people were affected and eventually 300,000 were evacuated. Soviet authorities, after initially trying to conceal the disaster from the outside world and their own people, created a 30-kilometer exclusion zone around the destroyed reactor, resettling the tens of thousands who had lived there.