Medvedev visits North Caucasus

Kremlin chief arrives after suicide blasts in Moscow and Dagestan

MAKHACHKALA, Russia - President Dmitry Medvedev made a surprise visit to the North Caucasus region of Dagestan on Thursday and said Russia must destroy those behind suicide bombings that killed at least 50 people this week.

The attacks in Moscow and Dagestan have stoked fears that Islamist militants from the North Caucasus may launch a major bombing campaign against the Russian heartland.