At least 27 people are killed and 226 injured in an <a href="https://en.wikipedia.org/wiki/August_2013_Beirut_bombing" id="mwAk4" rel="mw:WikiLink" title="August 2013 Beirut bombing">explosion</a> in southern <a href="https://en.wikipedia.org/wiki/Beirut" id="mwAk8" rel="mw:WikiLink" title="Beirut">Beirut</a> near a complex used by Lebanon's militant group <a href="https://en.wikipedia.org/wiki/Hezbollah" id="mwAlA" rel="mw:WikiLink" title="Hezbollah">Hezbollah</a> in Lebanon. A previously unknown <a href="https://en.wikipedia.org/wiki/Syria" id="mwAlE" rel="mw:WikiLink" title="Syria">Syrian</a> <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Sunni" id="mwAlI" rel="mw:WikiLink" title="Sunni">Sunni</a> group claims responsibility in an online video.