Moscow / AFP Russian President Vladimir Putin on Monday ordered a halt to an agreement with the United States on plutonium disposal, citing Washington’s “unfriendly actions”. The deal, signed in 2000, was meant to allow both nuclear powers to dispose of weapons-grade plutonium from their defence programmes, a move seen as a key step in the disarmament process. The two …

  Bogota / AFP Colombian voters rejected a peace deal with communist FARC rebels, near-complete referendum results indicated, unexpectedly blasting away what the government hoped would be a historic end to the 52-year conflict. Reversing the trend of earlier opinion polls, voters appeared to have narrowly defied the government’s pleas for a new era of peace in the South American country. …

  Stockholm / AFP Yoshinori Ohsumi of Japan won the Nobel Medicine Prize on Monday for his pioneering work on autophagy — a process whereby cells “eat themselves” — which when disrupted can cause Parkinson’s and diabetes. A fundamental process in cell physiology, autophagy is essential for the orderly recycling of damaged cell parts and understanding it better has major implications …