TOKYO - A spike in Japanese government bond yields threatens to derail Prime Minister Sanae Takaichi's growth strategy less than a year after she vowed aggressive fiscal stimulus to spur economy.

The yield on the benchmark 10-year Japanese government bond reached the 3 percent mark for the first time in 30 years on Tuesday as investors became increasingly worried about the outlook for Japan's fiscal health under Takaichi's economic management.

Related coverage: