MOSCOW (Reuters) - Hackers have stolen more than 2 billion roubles ($31.3 million) from banks' correspondent accounts in Russian central bank, the central bank official Artyom Sychyov told a briefing on Friday.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=4KYCmt_Td3A:Ak500uPbZhA:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=4KYCmt_Td3A:Ak500uPbZhA:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=4KYCmt_Td3A:Ak500uPbZhA:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=4KYCmt_Td3A:Ak500uPbZhA:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=4KYCmt_Td3A:Ak500uPbZhA:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/4KYCmt_Td3A" height="1" width="1" alt="" />