NASHVILLE, Tenn, April 18 (Reuters) - The problems in the U.S. commercial real estate market are a real risk for the economy, the president of the Federal Reserve Bank of Atlanta said on Saturday.

Dennis Lockhart said the Fed is still considering adding commercial mortgage backed securities as an asset class in the Term Asset-Backed Securities Loan Facility, but that the "details have not been fully worked out."

Lockhart was chairing a panel on banking and real estate at a conference in Nashville, Tennessee. (Reporting by Kristina Cooke; Editing by Leslie Adler)