Suffering from severe migraine, an assistant sub-inspector posted at the Delhi airport attempted suicide by turning his service revolver on himself while on duty, police said on Friday.

ASI Jagbir Singh is undergoing treatment after the incident on Thursday, an official said.

"A call was received at 8.45 am, when ASI Jagbir Singh, posted at Domestic Airport police station, attempted suicide by shooting himself with his service revolver while on duty at the police booth," he said.

Singh had written a note citing his illness, severe migraine, as the reason for wanting to end his life, the official said.

Further investigation is underway.

Except for the headline, this story has not been edited by The Telegraph Online staff and has been published from a syndicated feed.