A British journalist traveling from London to Iraq has been found dead at Istanbul Ataturk Airport after missing her connecting flight in what initial reports say was a suicide, though her colleagues have raised doubts over the cause of death.

The woman, named as 50-year-old Jacqueline Sutton, arrived in Istanbul at 9:58 pm on October 17 with Turkish Airlines flight number 1986. She was later found dead in a toilet, allegedly after having hanged herself with her shoelaces.

However, colleagues raised doubts over the possibility that Sutton, the acting Iraq director for the Institute for War and Peace Reporting (IWPR), who had also worked for the United Nations and the BBC, might have committed suicide.

“[I find it] very difficult to believe that my colleague ... and seasoned traveller Jacky Sutton committed suicide,” said Sudipto Mukerjee, a country director with the United Nations Development Programme, in a Tweet after the incident.

France24