On November 27, 2007, an explosion occurred in one of the chemical factories in Chenjiagang Chemical Zone (陈家港生态化工园区), with 7 killed and many injured.[5][6] On November 23, 2010, more than thirty were poisoned by a toxic gas release.[7] On the morning of February 10, 2011, rumors of toxic chemical release and potential imminent explosions in the Chenjiagang Chemical Industry Park led to panic in the towns of Chenjiagang and Shuanggang, causing the death of four people.[8] On the afternoon of May 18 and again on July 26 in 2011, there were explosions at local factories.[9]