Russian Prime Minister Dmitry Medvedev has announced his resignation after President Vladimir Putin proposed a series of constitutional reforms.

Medvedev said the government resigned because the reform proposals would make significant changes to the country�s balance of power.

Medvedev said his government�s resignation gives room to the president to carry out the changes he wants to make to the constitution.

Putin has ordered the government to fulfill its responsibilities until a new government is appointed.

He has offered Medvedev to oversee Defense and security affairs in a new Security Council role.