As a shattered Russia mourned Metro bombing victims, UN Security Council members and Secretary-General Ban Ki-moon strongly condemned Moscow’s twin terror attacks in the subway system that have killed dozens of people and injured scores more.

Media reports say at least 39 people died as a result of the bombings, which occurred at separate metro stations within 40 minutes of each other during the morning rush hour Monday.

“The members of the Security Council reaffirmed that terrorism in all its forms and manifestations constitutes one of the most serious threats to international peace and security, and that any acts of terrorism are criminal and unjustifiable, regardless of their motivation,” the 15-member panel said in a press statement.

Council members also “reiterated their determination to combat all forms of terrorism.”

In a statement issued by his spokesperson, Secretary-General Ban voiced confidence that “the Russian authorities will bring to justice the perpetrators of this heinous terrorist attack.”

The Secretary-General “extends his deepest condolences to the families of the victims, and to the Government and people of the Russian Federation. He also wishes the many injured a swift recovery.”

Condolences and tributes for the victims of the Moscow Metro terrorist attack have been pouring into Russia from around the world.

Condoling the loss of lives in the bomb blasts, Indian Prime Minister Manmohan Singh expressed India’s solidarity with Russia in combating violence and terrorism. In a letter to President Dmitry Medvedev, he said the blasts were a most tragic and horrific act of violence.

“It is with great anguish that I have learnt of the bomb blasts in Moscow, which have led to the loss of so many innocent lives. This is a most tragic and horrific act of violence. At this difficult hour our thoughts are with you, the people of Russia and the families and friends of the victims of this terrible tragedy. On behalf of the Government and people of India, I convey our deepest condolences. I wish to assure you that India stands united with Russia in combating the forces of violence and terrorism,” the Prime Minister said.

US President Barack Obama telephoned Russian President Medvedev to say that Russians and Americans stand together against extremism and violence. “Our thoughts and prayers go out to the people of Russia after the terrible loss of life and injuries from the bombings on the Moscow Metro.”

The European Union and the Council of Europe were also quick to express their anger over the bombings.

Moscow held a day of mourning Tuesday for the 39 people killed in a pair of underground suicide bombings as the Russian authorities faced pressure to prevent a resurgence of deadly militant attacks.