Three officials of temp staff agency Goodwill Inc. and a former executive of Tokyo-based harbor transport company Towa Lease were arrested Tuesday for alleged "double dispatch" of temporary workers, the Metropolitan Police Department said.

Arrested were Taisuke Uemura, 37, chief of Goodwill's business planning division, two other Goodwill officials, and Ryuichi Egawa, 47, former managing director of Towa Lease.

According to the police investigation, Towa Lease sublet several workers sent by Goodwill to another company for several months from around late 2006.