SINGAPORE - A 26-year-old female doctorate student was found dead at a laboratory in Biopolis Drive on Tuesday morning (Jan 16).

The Slovakian, who was working on her PhD at Duke-NUS Medical School, is understood to have died from inhaling nitrogen gas found in the lab.

Her body was discovered by the lab's staff. A note was also found.

Police said they were alerted to a case of unnatural death at 61, Biopolis Drive, at around 10.45am. The Singapore Civil Defence Force also received an ambulance call around that time.

The woman was found motionless at the scene and pronounced dead by paramedics, said a spokesman for the police, adding that they are investigating the case.

She was believed to have been working at the Claridge-Chang Lab.