Eight people were killed on Sunday when a fire ravaged a drug rehab centre in Russia's Altai region, investigators said, raising fresh questions about security standards in the country's medical facilities.
Brazil's economic capital Sao Paulo on Monday began mandatory detention of drug addicts for rehab, authorities said, amid rising worries over an epidemic of crack cocaine use.
British Prime Minister David Cameron will on Monday call for a "tough but intelligent" approach to law and order, advocating a combination of tough prison sentences and lighter rehabilitation methods.