The opposition parties may have smelled blood over the recent Cabinet minister funding scandals, but they now have a spending irregularity of their own to deal with.

Democratic Party of Japan Secretary-General Yukio Edano said Wednesday that one of his supporter groups had failed to record ¥2.4 million worth of income in its political funding report for 2011.

He said the group collected the money from 487 supporters who paid an entrance fee at a New Year's gathering in Saitama Prefecture in February 2011, but it failed to report the income.