Twenty people are killed in <a href="https://en.wikipedia.org/wiki/Handlová" id="mwAYE" rel="mw:WikiLink" title="Handlová">Handlová</a>, <a href="https://en.wikipedia.org/wiki/Trenčín_Region" id="mwAYI" rel="mw:WikiLink" title="Trenčín Region">Trenčín Region</a>, in the deadliest <a href="https://en.wikipedia.org/wiki/2009_Handlová_mine_blast" id="mwAYM" rel="mw:WikiLink" title="2009 Handlová mine blast">mining disaster</a> in <a href="https://en.wikipedia.org/wiki/Slovakia" id="mwAYQ" rel="mw:WikiLink" title="Slovakia">Slovakia</a>'s history.