Who was responsible for chernobyl accident?

The Chernobyl accident, which occurred on April 26, 1986, was primarily caused by a flawed reactor design and serious mistakes made by the plant operators during a safety test. The operators violated protocols and failed to follow proper safety procedures, leading to an uncontrolled reaction. Additionally, the Soviet government's lack of transparency and inadequate safety culture contributed to the disaster's severity and the subsequent mishandling of the emergency response.