German Foreign Ministry summons Russian ambassador. Alexei Navalny was considered the harshest critic of Russian President Vladimir Putin.
Navalny collapsed on Friday while walking in the courtyard of his Siberian prison camp. The case sparked international consternation and, in some cases, sharp criticism of Kremlin chief Vladimir Putin, who many associate with Navalny's death. In Russia, authorities are now taking tough action against mourners. More than 400 people have already been arrested at Navalny memorial rallies in 36 Russian cities.