Their disappearance was detected last week by specialists from the Ministry of Health's Radiation Protection Centre during a routine radiation safety check-up at the Air Base, the ministry said in a statement.
"The missing detectors were written off and were no longer used in aircraft. (…) They were scheduled for utilization in the third quarter of this year," Commander of the Lithuanian Air Force Colonel Audronis Navickas told journalists.
The radiation sources in ice detectors are attributed to the lowest fifth hazardousness category. There's no risk to public health if they are not damaged, and if damaged, the risk is minimal, the ministry noted.
The Military Police has launched a pre-trial investigation into the incident.
The Air Base in Šiauliai is home to NATO's Baltic air policing mission.
Norwegian-owned Lithuanian textile manufacturer Devold says it could producer around 100,000...