(Yicai Global) March 13 -- Chinese stock markets tumbled this morning as investors appeared panicked following a more than 9 percent dip in US markets yesterday.

The Shanghai Composite Index opened at 2,804.23, down 4.08 percent, while the Shenzhen Component Index plunged 5.11 percent to 10,382.22. The ChiNext Price Index, which tracks growth enterprises listed in Shenzhen, dropped 5.28 percent to 1,937.95.

The ongoing spread of Covid-19 continued to weigh on American markets yesterday, with the Dow Jones Industry Average diving 10 percent, the Nasdaq losing 9.51 percent and the S&P 500 Index plummeting 9.43 percent.