Japanese government bond yields climbed across the curve on Monday, extending recent pressure on the country’s debt market. The 10-year benchmark yield rose 2.5 basis points to 1.585%, its highest level in years, while the five-year yield added 1.5 basis points to 1.125%. Longer-dated paper also weakened, with the 20-year yield gaining 2 basis points to 2.580%. The moves come amid heightened scrutiny of Japanese monetary policy and currency management. Tokyo refuted suggestions that Washington is pushing the Bank of Japan to tighten policy, saying the central bank remains independent. Traders nevertheless pointed to a flurry of yen-support operations, tallying the 20th intervention since 29 July, as evidence of mounting pressure on policymakers to stabilise markets.