...deepened after key support levels were breached, traders said.
By 1128 GMT, ECM shares were 6.28 percent weaker at 1,268 crowns after hitting 1,245 crowns earlier in the session, their lowest level since entering the Prague Stock Exchange last year. Orco Property Group fell 5.71 percent to 2,310 crowns.
In comparison, shares of Polish peer Globe Trade Centre (GTC) were up by 0.52 percent.
"There was a new wave of stop losses. The volumes are relatively low, but the nerves are high in the market and no one wants to keep positions," said Jan Pavlik, a trader at Czech brokerage Wood & Company.
"There is no fundamental ground (for the drop). The prices are attractive, both Orco and ECM," he added.
The Prague PX index was off 1.41 percent at a two-month low of 1742.1 points.
(Reporting by Jan Korselt; Editing by Rory Channing)
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Keywords: STOCKS CZECH/REAL ESTATE
[PRAGUE/Reuters/Finance.cz]