Visitors hoping to walk across the world's highest and longest glass-bottom bridge might have to wait for a few more days, as the bridge's management committee is busy upgrading tourist support facilities.

The bridge in Zhangjiajie, Hunan province, has been temporarily closed since Sept 2 after it was overwhelmed by crowds of tourists after its test run on Aug 20. The suspension drew questions about the safety of the bridge.

Luo Kewen, spokesman for the bridge's management committee, said on Thursday that there is "no problem" with the bridge. The closure was tied to facilities upgrades to welcome visitors attending an international conference of traveling salespeople and an international tourism festival that will kick off in Zhangjiajie on Monday.