German Chancellor Angela Merkel expressed her shock on Monday at two suicide bombings on Moscow's Metro rail line earlier that day, in which dozens were killed, DPA reported.
"It is a terrible occurrence," Merkel said. She sent a condolence message to Russian President Dmitry Medvedev, extending her sympathy to the victims' families and hoping for a quick resolution to investigations into the rush-hour attacks.
Merkel said the crimes were a setback for Russian efforts to increase security.
"It is shocking that such attacks were possible in the middle of Moscow," she said.
The chancellor also wished the injured a speedy recovery, according to a government spokesman in Berlin.