Iraq is searching for "highly dangerous" radioactive material, the theft of which last year raised fears among Iraqi officials that it could be used as a weapon if acquired by the so-called Islamic State.
Baghdad reported the stolen material to the International Atomic Energy Agency in November but has not requested assistance to recover it, the UN nuclear watchdog said yesterday.
The material, stored in a protective case the size of a laptop computer, went missing from a storage facility near the southern city of Basra belonging to US oil and gas company Weatherford, an environment ministry document seen by Reuters showed and security, environmental and provincial officials confirmed.
A spokesman for Iraq's environment ministry said he could not discuss the issue, citing national security concerns.
Weatherford said in a statement that it was not responsible or liable for the theft. "We do not own, operate or control sources or the bunker where the sources are stored," it said.
The material, which uses gamma rays to test flaws in materials used for oil and gas pipelines in a process called industrial gamma radiography, is owned by Istanbul-based SGS Turkey, according to the document and officials.
An SGS official in Iraq declined to comment and referred Reuters to its Turkish headquarters, which did not respond to phone calls and emails.
The US State Department said it was aware of the reports but has seen no sign that the so-called Islamic State or other militant groups have acquired it.
The environment ministry document, dated 30 November and addressed to the ministry's Centre for Prevention of Radiation, describes "the theft of a highly dangerous radioactive source of Ir-192 with highly radioactive activity belonging to SGS from a depot belonging to Weatherford in the Rafidhia area of Basra province".
A senior environment ministry official based in Basra, who declined to be named as he is not authorised to speak publicly, said the device contained up to 10 grams (0.35 ounces) of Ir-192 "capsules", a radioactive isotope of iridium also used to treat cancer.
The IAEA said the material is classed as a Category 2 radioactive source, meaning that if not managed properly it could cause permanent injury to a person in close proximity to it for minutes or hours, and could be fatal to someone exposed for a period of hours to days.
How harmful exposure can be is determined by a number of factors such as the material's strength and age, which Reuters could not immediately determine.
The ministry document said the material posed a risk of bodily and environmental harm as well as a national security threat.
