The <a href="https://en.wikipedia.org/wiki/San_Bernardino_train_disaster" id="mwATs" rel="mw:WikiLink" title="San Bernardino train disaster">San Bernardino train disaster</a> kills four people, only to be followed a week later by an underground gasoline pipeline explosion, which kills two more people.<sup about="#mwt95" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-17"}}' id="cite_ref-17" rel="dc:references" typeof="mw:Extension/ref"><a href="./May_12#cite_note-17" id="mwATw" style="counter-reset: mw-Ref 17;"><span class="mw-reflink-text" id="mwAT0">[17]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-17"><cite about="#mwt92" class="citation web cs1" id="CITEREFNTSB1990"><a class="external text" href="https://web.archive.org/web/20140306105228/http://www.pipelinesafetytrust.com/docs/ntsb_doc26.pdf" id="mwBiI" rel="mw:ExtLink nofollow">"Railroad Accident Report – Derailment of Southern Pacific Transportation Company Freight Train on May 12, 1989, and Subsequent Rupture of Calnev Petroleum Pipeline on May 25, 1989 – San Bernardino, California"</a> <span class="cs1-format" id="mwBiM">(PDF)</span>. <a href="./National_Transportation_Safety_Board" id="mwBiQ" rel="mw:WikiLink" title="National Transportation Safety Board">National Transportation Safety Board</a>. June 19, 1990. Archived from <a class="external text" href="http://www.pipelinesafetytrust.com/docs/ntsb_doc26.pdf" id="mwBiU" rel="mw:ExtLink nofollow">the original</a> <span class="cs1-format" id="mwBiY">(PDF)</span> on March 6, 2014<span class="reference-accessdate" id="mwBic">. Retrieved <span class="nowrap" id="mwBig">August 3,</span> 2006</span>.</cite><span about="#mwt92" class="Z3988" id="mwBik" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Railroad+Accident+Report+%E2%80%93+Derailment+of+Southern+Pacific+Transportation+Company+Freight+Train+on+May+12%2C+1989%2C+and+Subsequent+Rupture+of+Calnev+Petroleum+Pipeline+on+May+25%2C+1989+%E2%80%93+San+Bernardino%2C+California&amp;rft.pub=National+Transportation+Safety+Board&amp;rft.date=1990-06-19&amp;rft_id=http%3A%2F%2Fwww.pipelinesafetytrust.com%2Fdocs%2Fntsb_doc26.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AMay+12"></span></span>