A senior police officer who harassed three subordinates, one of whom committed suicide in April, has been reprimanded and demoted, according to the Fukushima Prefectural Police.

Takayuki Seino, 45, who headed the department's Second Investigation Division, repeatedly bullied the male officers in his division between May 2013 and April 2014.

The harassment was daily and often comprised belittling sneers such as, "Haven't you ever learned Japanese?" and "Don't write like an elementary school kid," the police said.