Bank of Japan Gov. Kazuo Ueda said the central bank could end its negative interest rate policy when achievement of its 2% inflation target is in sight, the Yomiuri newspaper reported Saturday, signaling possible interest rate hikes.

The central bank could have enough data by year-end to determine whether it can end negative rates, Ueda told the paper in an interview Wednesday.

"Once we're convinced Japan will see sustained rises in inflation accompanied by wage growth, there are various options we can take," Ueda was quoted as saying.