PHOTOS: Magnitude-6.4 earthquake hits Taiwan

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Saturday, February 6, 2016
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.
PHOTOS: Magnitude-6.4 earthquake hits TaiwanIn 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

TAINAN, Taiwan -- Authorities in southern Taiwan say more than 100 people are still missing after a strong earthquake caused a high-rise residential building to collapse.