Packets of processed cheese sit for sale beneath empty shelves inside a Metro Cash &amp; Carry store, the Russia unit of Metro AG, in Moscow, Russia, on Friday, Aug. 29, 2014. Metro Cash &amp; Carry has warned that domestic food suppliers are trying to increase some food prices as local produce is substituted for EU, Norwegian and U.S. equivalents which have been sanctioned. Photographer: Andrey Rudakov/Bloomberg via Getty Images