Avex, which manages the 6-member group AAA, has decided to place the group's leader Naoya Urata on indefinite hiatus.
The company announced its decision through its avex management website.
In its announcement, the company apologized that one of its artists was involved in an assault, and apologized to the victim of the assault.
The move comes a day after the singer had already announced a self-imposed suspension of his activities.
Urata had several events and concerts scheduled over the next couple months. They have been cancelled, and people who had purchased tickets will receive a refund.
On April 19, Urata slapped a woman in her 20s after she rejected his advances. He was drunk at the time, and says he does not remember the incident.
The next day, the Tokyo Metropolitan Police arrested Urata for assaulting the woman.