The ruling coalition will consider jointly submitting a bill to fight political corruption amid the bribery scandal involving former Construction Minister Eichi Nakao, Hiromu Nonaka, secretary general of the Liberal Democratic Party, said Friday.

"The three parties will thoroughly discuss the matter first and consider (submitting a bill)," Nonaka told reporters. "It is important that the ruling parties stick together."

The opposition jointly submitted a bill to the Lower House this week to ban lawmakers from receiving goods in return for favors, and New Komeito plans to submit a similar bill in the next extraordinary Diet session.

The LDP was reportedly cool to the move because politicians are often asked for favors and at the same time get "political contributions."

If an anticorruption bill is passed, such contributions may become illegal.