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Massive explosions that rocked the port city of Tianjin were so strong that residents miles away thought they were experiencing an earthquake, witnesses said Thursday as the death toll rose to 50.

Twelve firefighters were among those killed in the twin blasts, which sent massive fireballs into the sky and devastated a warehouse district as well as nearby homes. More than 700 wounded were being treated at hospitals, including 71 in serious condition. No figure was given for those missing.

Chinese authorities did not say what caused the blasts. Local officials said firefighting was suspended on orders of the central government so that a team of chemical experts could assess hazardous materials on site.

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!!!!!BN2015-8-13ChinaExplosionsDeaths1Death toll rising from massive explosion in Tianjin, China

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