Authorities have evacuated a half-mile (805-metre) area around the chemical spill and the waterway was closed as well.
The US Coast Guard is working with the state Department of Environmental Protection to assess the situation.
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The National People's Congress also appointed close Xi ally Wang Qishan to the formerly ceremonial post of vice president.
Highs of 7 Celsius (45F).
The move, which had been expected, was made on the recommendation of FBI disciplinary officials.