Japan condemns US sex slave bill

Japan has denounced a resolution before the US Congress demanding that Tokyo make amends for forcing foreign women into sexual slavery during World War II. Japanese Foreign Minister Taro Aso says his country has already said and done enough on the issue of "comfort women".

"[The resolution] is extremely regrettable and not based on objective facts," Mr Aso said.

"Their action does not take into account the Japanese Government's response to the issue of comfort women."

He says Tokyo is working to persuade US law makers to accept its position.

The bill calls on Japan to "formally and unambiguously apologise and acknowledge the tragedy".