Photos apparently showing thousands of dead fish washed up on the shores of a river near the Tianjin blast zone have emerged online.
Several pictures were shared on Twitter raising speculation that hazardous chemicals from the explosion may have contaminated the waters in the surrounding areas.
China Daily reported that Deng Xiaowen, a senior official at Tianjin Environmental Protection, said the area has been subject to regular monitoring, and that so far they hadn't detected any abnormalities.
However, researchers have detected 'some cyanide compounds', and although Xiaowen said the levels were in a normal range, it has been reported that the concentration has been 365 times the national standards.
The Tianjin disaster occurred on 12 August at the port city, 120 kilometers (75 miles) east of Beijing, claiming the lives of at least 104 people, with the death toll still rising.
Chinese authorities have since ordered everyone within three kilometres of the exploding warehouse full of hazardous chemicals, to evacuate the area.
The true extent of the explosion was revealed in a series of apocalyptic images showing the scorched crater left behind.
Tianjin
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Open Image ModalMourning And Rescue On The Seventh Day Of Tianjin Blasts(05 of09)
Open Image ModalTIANJIN, CHINA - AUGUST 18: (CHINA OUT) A damaged building is seen at the site of Tianjin warehouse explosion on August 18, 2015 in Tianjin, China. The death toll from last week's massive blasts in Tianjin rose to 114, and 65 people remained missing, officials said. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images) (credit:ChinaFotoPress via Getty Images)
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Open Image ModalMen gather on an elevated highway near the smoking remains of an explosion in northeastern China's Tianjin municipality Saturday, Aug. 15, 2015. New explosions and fire rocked the Chinese port city of Tianjin on Saturday, where one survivor was pulled out and authorities ordered evacuations within a 3-kilometer (1.8-mile) radius to clean up chemical contamination. (AP Photo/Ng Han Guan) (credit:Ng Han Guan/AP)
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Open Image ModalA local resident rides on a road covered with foam after a rain in Tianjin, China, 18 August 2015. Rain fell Tuesday, August 18, on the remains of a Chinese industrial site devastated by giant explosions, complicating clean-up efforts and heightening fear (credit:Imaginechina / Splash News)
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