The abrupt resignation of the land ministry's parliamentary secretary, Takeshi Tokuda, on Monday was the result of a sex scandal involving a minor, according to the weekly magazine Shukan Shincho.

The magazine, which hit newsstands Wednesday, says the Liberal Democratic Party lawmaker in February 2004 "forcefully" had sex with a 19-year-old in a Tokyo hotel after getting her heavily intoxicated at a restaurant and bar.

Tokuda was 31 years old at the time and married. He was then serving as a secretary to his father, Torao, a former Lower House lawmaker and head of the Tokushukai medical group.