A member of a sister group of the popular all-girl band AKB48 on Friday criticized the outcome of a probe into an alleged assault against her as "lies" while the group's management company was disclosing the result.

Management company AKS said an investigation launched after Maho Yamaguchi, a 23-year-old member of NGT48, was grabbed by the face by two men at her home in December, found no evidence that any member of the group was involved.

But Yamaguchi said Friday in a Twitter post that there are members who admitted having private connections with the attackers.