Sept. 14 (Bloomberg) -- Japan"s Prime Minister Junichiro Koizumi said no decision has been reached on whether to levy financial sanctions against North Korea.

Koizumi, speaking at a regular news conference today in Tokyo, was responding to a report in the Mainichi newspaper that Japan was preparing to impose the sanctions this month.

Japanese officials are preparing to implement sanctions on North Korea, Kyodo News reported, citing comments at a press briefing by Deputy Chief Cabinet Secretary Jinen Nagase.

``Relevant government ministries and agencies are making preparations as to whom the sanctions will target and when the sanctions will be implemented but nothing concrete has been decided,"" Kyodo quoted Nagase as saying.