PHOTOS: Magnitude-6.4 earthquake hits Taiwan

<div class="meta image-caption"><div class="origin-logo origin-image ap"><span>AP</span></div><span class="caption-text">In this photo released by China's Xinhua News Agency, rescuers search for survivors at a quake site in Tainan, Taiwan on Feb. 6, 2016. (Zhang Guojun/Xinhua via AP)</span></div>
Authorities in southern Taiwan say more than 100 people are still missing after a strong earthquake caused a high-rise residential building to collapse.
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