The exciting former champion was arrested on suspicion of "interfering with public service" after he reportedly ran away from the police following a motor vehicle incident, which saw him hitting a police officer, who was on a bicycle at the time, and suffered minor injuries.
From what we understand Miyazaki ran away for fear of being arrested for driving whilst his license was suspended. He was captured about 25 minutes later and arrested, spending time in a police station following the arrest, though he has now been released whilst they go through further investigations.
Whilst we are expecting to see some further action to be taken against Miyazaki it's hard to imagine too stiff of a punishment, though it does seem like his career is over, with some in the Japanese media reporting that he was "effectively retired" from the sport. His last fight came last year when he lost a decision in a WBA Light Flyweight title fight against fellow Japanese fighter Ryoichi Taguchi.
(Image courtesy of Nikkan sports