has not denied the statement," Seko said on a TV Asahi talk show. He did not attempt to explain the apparent discrepancies between the statement and Abe's denial that coercion was involved.
Abe sparked international outrage last week by saying there was no evidence to prove women were forced into military brothels across Asia.
"The fact is, there is no evidence to prove there was coercion," Abe told reporters Thursday.
South Korea later lodged an official protest, accusing him "glossing over the historical truth."
Rights activists in the Philippines slammed Abe for labeling the slaves as common prostitutes.
Historians say that about 200,000 women -- mostly from the Korean Peninsula and China -- served in Japanese military brothels throughout Asia in the 1930s and 1940s. Accounts of abuse by the military have been backed up by witnesses and former Japanese soldiers.
But prominent Japanese scholars and politicians routinely deny direct military involvement or the use of force in rounding up the women, blaming private contractors for any abuses.
Kono's 1993 apology did not meet demands by former sex slaves that it be approved by the Diet.
The government followed Kono's statement two years later by setting up a fund to meet victims' compensation demands, but the fund was based on private donations -- rather than government money -- and has been attacked as a government ruse to avoid owning up to the abuse.
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