The U.S. Treasury Department Wednesday said two Pakistani-based groups blacklisted as terrorist supporters are using new names in an effort to circumvent financial sanctions.

The Bush administration blacklisted Al Rashid Trust in September of 2001 and Al-Akhtar Trust International in 2003. The Treasury Department says it has added the aliases for the groups to its list of Specially Designated Global Terrorists.

The United States accuses the groups of providing support to al-Qaida.

The designation freezes the groups' U.S. assets and bans Americans from making donations to or doing business with the organizations.

A Treasury Department statement says Al Rashid Trust is now operating under numerous other names, including Al Amin Welfare Trust and Al-Ameen Trust.

It says Al-Akhtar Trust International is using multiple aliases, including Pakistan Relief Foundation and Azmat Pakistan Trust.

The statement says the United States is concerned the two groups are operating under new names to elude U.S. and U.N. sanctions and keep funneling money to terrorists.

Some information for this report was provided by AP.