RUSSIAN President Dmitry Medvedev called on the world community to tighten safety rules at nuclear plants and tell the truth when there were accidents like those at Chernobyl and Fukushima.

Olzhas Auyezov reports from Prypyat, Ukraine, 25 years after the nuclear disaster

I REFER to Conor Kane and Veronica McDermott’s articles (October 8) in which they highlighted the results of new research, confirming fears that radioactive debris from the Windscale (now known as Sellafield) fire in 1957 may be twice as much as originally thought.

The number of people treated for exposure to toxic smoke from a phosphorus fire in Ukraine more than tripled today, from 20 to 69, a day after a train loaded with the chemical derailed and caught fire.