25 years since Chernobyl nuclear disaster

On April 26 1986, the No. 4 reactor at the Chernobyl plant exploded, sending radiation billowing across Europe
113176589.jpg
1 of 14
People attend a memorial ceremony at the Chernobyl victims' monument in Kiev on April 26, 2011. The world on Tuesday marked a quarter century since the worst nuclear disaster at Chernobyl in Ukraine (AFP/Getty Images)
109223833.jpg
2 of 14
Undated photo of a plan showing the areas concerned by the radioactive contamination produced by the Chernobyl nuclear plant No. 4 reactor's blast, 26 April 1986, the world's worst nuclear accident of the 20th century (STF/AFP/Getty Images)
109223925.jpg
3 of 14
A Swedish farmer wearing anti-atomic clothes shifts fodder contaminated by the radioactive cloud of Chernobyl in June 1986, a few days after the No. 4 reactor's blast, the world's worst nuclear accident of the 20th century. (STF/AFP/Getty Images)
109223836.jpg
4 of 14
A policeman checks the level of radioactivity on vehicles leaving the 30 km forbidden area around Chernobyl after the nuclear plant No. 4 reactor's blast on 26 April 1986 (STF/AFP/Getty Images)
109223862.jpg
5 of 14
Photo, dated 01 October 1986, showing repairs being carried out on the Chernobyl nuclear plant in the Ukraine, following a major explosion 30 April 1996 which, according to official statistics, affected 3,235,984 Ukrainians and sent radioactive clouds all over Europe (AFP/Getty Images)
109226282.jpg
6 of 14
Photo, dated 05 August 1986, showing repairs being carried out on the Chernobyl nuclear plant in Russia (AFP/Getty Images)
113175237.jpg
7 of 14
Elderly women set candles at the monument to Chernobyl victims in Slavutich, some 50 kilometres (30 miles) away from the accident site, and where many of the power station's personnel used to live, during a memorial ceremony early on April 26, 2011 (AFP/Getty Images)
113176907.jpg
8 of 14
Environmental activists and militant groups lights candles at the Peace Bell in Quezon City Memorial, east of Manila on April 26, 2011, to join the Global Day of Action against Nuclear Reactors in commemoration of the 25th anniversary of the Chernobyl nuclear power plant disaster (AFP/Getty Images)
113176715.jpg
9 of 14
A boy places a portrait of his late grandfather during a memorial ceremony at the Chernobyl victims' monument in Kiev on April 26, 2011. The world on Tuesday marked a quarter century since the worst nuclear disaster at Chernobyl in Ukraine. (AFP/Getty Images)
113176803.jpg
10 of 14
A widow cries during the memorial ceremony at the Chernobyl victims' monument in Kiev on April 26, 2011 (AFP/Getty Images)
113176969.jpg
11 of 14
Environmental activists and militant groups lights candles at the Peace Bell in Quezon City Memorial, east of Manila on April 26, 2011, to join the Global Day of Action against Nuclear Reactors in commemoration of the 25th anniversary of the Chernobyl nuclear power plant disaster (AFP/Getty Images)
113175823.jpg
12 of 14
Activists and environmentalists protest against nuclear energy in front of the ministry of National Development in Budapest, on April 26, 2011. The protest was organised by Greenpeace and the National Society of Conservationists â Friends of the Earth. The white banner reads 'Chernobyl 25 years ago' and the yellow sign reads 'Nuclear energy? No, thanks!' (AFP/Getty Images)
113175759.jpg
13 of 14
Activists and environmentalists protest against nuclear energy in front of the ministry of National Development in Budapest, on April 26, 2011 (AFP/Getty Images)
109223837.jpg
14 of 14
A West German child is checked on the effects of the radio-active fall out one month after the Chernobyl nuclear plant No. 4 reactor's blast on 26 April 1986, the world's worst nuclear accident of the 20th century (AFP/Getty Images)