UPDATE 2-Hundreds return to Hong Kong streets as metro shut after violence <!-- no image --> <div>* "Extreme violence" justified use of emergency law, Lam says<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=AviuIL29YEI:_FFV6vgQ1Qk:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=AviuIL29YEI:_FFV6vgQ1Qk:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=AviuIL29YEI:_FFV6vgQ1Qk:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=AviuIL29YEI:_FFV6vgQ1Qk:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=AviuIL29YEI:_FFV6vgQ1Qk:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/AviuIL29YEI" height="1" width="1" alt=""></div> Posted by Reuters