In the downtown district of <a href="https://en.wikipedia.org/wiki/Richmond,_Indiana" id="mwAQI" rel="mw:WikiLink" title="Richmond, Indiana">Richmond, Indiana</a>, a <a href="https://en.wikipedia.org/wiki/Richmond,_Indiana_explosion" id="mwAQM" rel="mw:WikiLink" title="Richmond, Indiana explosion">double explosion</a> kills 41 and injures 150.