The U.S. is ready to help Russia in bringing...

U.S. President Barack Obama telephoned Dmitry Medvedev to express his condolences to the Russian people over the twin blasts which left 38 people dead and over 70 injured.

"President Obama said that the United States was ready to cooperate with Russia to help bring to justice those who undertook this attack," the White House said in a statement.

World leaders, heads of international organizations and Russian religious figures have condemned the attacks.

WASHINGTON, March 30 (RIA Novosti)