A CISF personnel allegedly shot himself dead at the Kolkata airport on Friday evening, police said.
The body of Pankaj Kumar, a sub-inspector, was found lying in a pool of blood around 7.45pm at the basement washroom meant for airport staff, they said.
His body was found after airport security personnel rushed to the washroom on hearing a gunshot, they added.
He had a gunshot wound on the forehead and his service pistol was found lying beside the body, police said.
The body has been sent for post-mortem, and police are questioning his colleagues and other airport staff to ascertain why Kumar took his life.
According to the police, a case of unnatural death has been registered.
As the incident happened away from the passenger movement area, it did not cause any hindrance to airport operations, stated airport officials.