Russia : Russia 's Putin said talks with Ukrainian President Poroshenko were positive . Putin had said earlier that talks could decide future peace of Ukraine . Ukraine 's Security Service says 10 Russian soldiers were detained in the Donetsk region . Poroshenko in June signed a landmark EU trade pact , despite opposition from Russia . Russian state media quoted a source saying the soldiers crossed the border accidentally .
Russia : Russia 's Putin said talks with Ukrainian President Poroshenko were positive . Putin had said earlier that talks could decide future peace of Ukraine . Ukraine 's Security Service says 10 Russian soldiers were detained in the Donetsk region . Russian state media quoted a source saying the soldiers crossed the border accidentally .