An Australian security contractor working at the Australian Embassy in Baghdad has died, officials said Friday.

The 34-year-old worker died at the embassy, but Australian Foreign Minister Julie Bishop declined to provide any details on the cause, saying the circumstances were under investigation.

"Because of the need to keep engaged with his family and because there is a very thorough investigation under way into his death, I won't go into details," Bishop told reporters. "But I can confirm that his death is not related to the broader security environment in Baghdad."

Bishop said a high level of security at the embassy was being maintained.

The man had been working for security company Unity Resources Group. The company did not immediately respond to a request for comment.