Terror returned to the heart of Russia, with two deadly suicide bombings on the Moscow subway at rush hour, including an attack at the station beneath the headquarters of the secret police. At least 38 people were killed and more than 60 wounded in Monday morning's blasts, the first such attacks in Moscow in six years. Russian police have killed several Islamic militant leaders in the North Caucasus recently, including one last week in the Kabardino-Balkariya region, which raised fears of retaliatory strikes and escalating bloodshed by the militants. A woman cries near the flowers and candles placed in memory of the subway blast victims at the Lubyanka Subway station, which was earlier hit by an explosion, Moscow, Monday, March 29. Two explosions blasted Moscow's subway system Monday morning as it was jam-packed with rush-hour passengers, killing at least 37 people, emergency officials and news agencies said. Russian Prime Minister Vladimir Putin speaks with a survivor of the metro bomb explosions as he visits Botkinskaya hospital in Moscow, Monday, March 29.