A man who had been indicted for using illegal stimulants and possessing marijuana escaped early Saturday in Osaka Prefecture while being transferred to police custody after his bail was revoked.

Ryotaro Oue fled from a vehicle in Higashiosaka at around 4 a.m. when an official from the Osaka District Public Prosecutor's Office unlocked the suspect's left handcuff after he complained it was too tight, the office said.

The 42-year-old, who had been sitting in the third row of seats in the passenger section of the vehicle, opened the door of the moving vehicle and escaped as the driver slowed down to stop.