Two weeks after massive chemical explosions devastated the Chinese port city of Tianjin, state prosecutors have accused 11 officials and port executives of “dereliction of duty” and “abuse of power.”

Time, citing information from the state-run Xinhua news agency, reports that some of the officials under investigation include We Dai, the head of Tianjin’s municipal transportation commission and Zheng Qingyue, the president of Tianjin Port Holdings.

The warehouse that started the Aug. 12 explosions was owned by Ruihai International Logistics. The blasts resulted in the deaths of 139 people and in the injury of hundreds more. According to Chinese authorities the warehouse was used to store around 40 different hazardous chemicals, a list that included 700 tons of highly toxic sodium cyanide.

It has recently come to light that from October 2014 to June 2015, the company had in fact been handling hazardous chemicals without a license.

As Xinhua reported, Yu Xuewei, a 41-year-old former executive at a state-run chemical company, explains, "After the first license expired, we applied for an extension. We did not cease operation because we did not think it was a problem. Many other companies have continued working without a license."

As reported in Fortune, it has been estimated that the blasts will end up generating around $1.5 billion in insurance claims for damages to cars as well as local housing.

CNN reports that last week China's State Council announced that they had formed an investigative committee to "give a responsible answer" on the cause of the initial explosion and promised to severely punish those they find responsible for it.

Since the explosions, authorities have been scrambling to deal with the extreme toxicity left at the blast site.