The former textile factory in the town of Brněnec was stolen by the Nazis from its Jewish owners in 1938 and turned into a concentration camp. This weekend it welcomed the first visitors to the Museum of Survivors.
The bloodshed took place in the philosophy department building of Charles University, where the shooter was a student, police said said. The gunman also died, authorities said.
Germany said Tuesday it is reviewing tech suppliers such as China's Huawei and ZTE, whose equipment is used in Germany's 5G networks. Europeans are starting to favor a tougher stance on China.