11.   It said remaining radioactive debris could cause contamination that was above normal health standards and recommended action to fence off affected sites and improve monitoring procedures.

12.   Kostenko claims none of the foreign-funded projects currently deal with the fuel and other radioactive debris inside.

13.   Radioactive debris found on ground as small as grain of salt.

14.   However, scientists were said to be concerned that radioactive debris may fall back to Earth.

15.   A limited amount of radioactive debris, including dust and pieces of paper, was reported to have flown out of the building.

16.   Radioactive debris from dead nuclear-powered Russian spy satellites could damage working satellites orbiting the Earth, NASA officials said in a newspaper report published Sunday.

17.   Several technical plans have been drawn up to ensure the durability of the current sarcophagus and remove the dozens of tonnes of radioactive debris lying inside.