Closures
Of the 17 RBMKs built (one was still under construction at the Kursk Nuclear Power Plant), all three surviving reactors at the Chernobyl plant have now been closed (the fourth having been destroyed in the accident). Chernobyl 5 and 6 were under construction at the time of the mishap at Chernobyl, but further construction was stopped due to the high level of contamination at the site limiting its longer term future. Both reactors at Ignalina in Lithuania were also shut down. Russia is the only country to still operate reactors of this design: Saint Petersburg (4 RBMK-1000), Smolensk (3 RBMK-1000) and Kursk (4 RBMK-1000).
Read more about this topic: RBMK