Police on Wednesday handed prosecutors their case against six executives in connection with the death of a 6-year-old boy who was crushed in an automatic revolving door at Tokyo's Roppongi Hills commercial complex in March.

The Metropolitan Police Department has alleged that the six committed professional negligence resulting in the death of Ryo Mizokawa from Suita, Osaka Prefecture.

The six are executives of Mori Building Co., the operator of the business, shopping and entertainment complex, and Sanwa Tajima Corp., the manufacturer of the door.