At least 27 people are killed and dozens are wounded in <a href="https://en.wikipedia.org/wiki/2012_Welikada_prison_riot" id="mwAc8" rel="mw:WikiLink" title="2012 Welikada prison riot">conflicts</a> between inmates and guards at Welikada prison in <a href="https://en.wikipedia.org/wiki/Colombo" id="mwAdA" rel="mw:WikiLink" title="Colombo">Colombo</a>.