On Wednesday, the whole of the Czech Republic, with the exception of the Ústí and Moravian-Silesian regions, was placed on the RKI's list of risk areas. These exceptions had caused some surprise, as they could not be justified by the development of infection rates alone. This is also shown by the current "traffic light" map of the Czech government (see map).
Now it is over: As Czech Foreign Minister Tomáš Petříček announced on Twitter, Germany will declare the entire Czech Republic a risk area today. This would have been decided at an extraordinary meeting of several federal ministries.
source: novinky.cz (in Czech)