A doctor arrested Friday for alleged negligence in connection with a 12-year-old girl's death at a Tokyo hospital last year also ordered that records be falsified, investigative sources alleged Tuesday.

Kazuki Sato, 38, who was turned over to prosecutors Sunday, is also suspected of ordering a 31-year-old clinical engineer to falsify records pertaining to a heart-lung machine that he was responsible for operating during surgery on Akika Hirayanagi on March 2, 2001, at Tokyo Women's Medical University Hospital, the sources said.

Sato has denied giving the order, they added.