Former transport minister Sumio Mabuchi will run in the Democratic Party of Japan's presidential election, a senior DPJ member said Sunday, joining former trade minister Banri Kaieda, who declared the previous day.

The candidates emerged a week after the party was savaged in the House of Representatives election.

Renho, former minister of administrative reform, said Mabuchi decided to enter the race after discussing the matter with her in Tokyo the same day and that she agreed not to run.