AIG investment a "one-off" transaction

WASHINGTON (Reuters) - The U.S. Treasury Department said on Monday its $40 billion (25.3 billion pound) investment in American International Group was a one-off transaction that will not reduce the amount of capital that the Treasury plans to inject into U.S. banks.

A Treasury official also told reporters on a conference call that a member of President-elect Barack Obama's transition team was briefed on the transaction on Sunday night.

"This is a one-off, created solely for AIG," the official said, adding that the funds would not come from the $250 billion bank capital purchase program.

(Reporting by David Lawder; Editing by Theodore d'Afflisio)