Yadgir: Three contract workers were killed and two others were critically injured after a suspected chemical leak at the CIL Laboratory unit in the Kadechur Industrial Area of Yadgir district during the night shift on Wednesday. The deceased have been identified as Vikram Singh and Sanjay Singh, both natives of Madhya Pradesh, and Ganesh from Telangana. Two other workers, Shivakumar of Telangana and Hemanth from Andhra Pradesh, were rushed to Raichur Institute of Medical Sciences (RIMS), where they are undergoing treatment. According to preliminary information, the workers were on duty when the chemical leak occurred. Yadgir Deputy Commissioner Rahul Pandwe and Superintendent of Police Pradeep Shankar visited the factory to assess the situation and review rescue efforts.