The unexpected action is intended to tamp down a potential bubble in the bond market fueled by investors shunning riskier assets like stocks and real estate.

China's central bank suspended treasury bond purchases on Friday, briefly lifting yields and spurring speculation it is stepping up defence of the yuan currency which has been sliding since the election of Donald Trump as U.

The People's Bank of China (PBC) announced on Friday that it has decided to temporarily suspend treasury bond purchases in the open market, starting from this month. The central bank said the decision was made as demand exceeded supply on the government bond market recently,