Spain train crash: PM Sanchez calls for investigation as 3 days of mourning begins
Emergency crews worked through the night after a high-speed train collision killed 68 people. PM Pedro Sanchez has pledged a full investigation into Spain's second major train accident this year.
<p>Emergency crews worked through the night after a high-speed train collision killed 68 people. PM Pedro Sanchez has pledged a full investigation into Spain's second major train accident this year.</p>