The U.N. security mission in Afghanistan has asked Japan to treat injured people under a plan to dispatch Self-Defense Forces medics to the country to provide human resources training, government sources said Sunday.

The International Security Assistance Force, led by NATO, has not specified who it wants the Japanese medics to treat, but the possibility that it could include soldiers wounded in battle cannot be denied, the sources said.

If wounded soldiers are to be treated by SDF medical officers, the SDF could be criticized as effectively participating in the use of force, which is banned under the Constitution.