China’s securities regulator has been instructed to curb access to bond and H-share financing by real estate firms, online financial magazine Caixin reported.

H-shares are Hong Kong-traded stocks issued by companies registered in mainland China.

According to Caixin, China’s main economic planner has also been instructed to curb bond issuance approvals by real estate firms.

Caixin’s report comes amid increasing signs of a crackdown on China’s bubbly real estate market. Multiple industry sources told Reuters last week that bond issuance by real estate firms on public exchanges has become far more difficult recently, as policymakers worry about high housing and land prices.