WASHINGTON (AP) - The Obama administration is expanding sanctions against North Korea by freezing the assets of individuals, companies and organizations allegedly linked to support for its nuclear program.

The Treasury Department on Monday announced the new sanctions, which amount to a blacklisting of four North Korean individuals, three North Korean companies and five North Korean government agencies.

Two of the individuals are associated with the government's General Bureau of Atomic Energy.

Secretary of State Hillary Rodham Clinton had announced the administration's intention to expand sanctions against North Korea when she was in Seoul in July.