BoA ALT Classes Downgraded

Three classes of mortgage pass-through certificates issued by Banc of America Alternative Loan Trust series ALT 2006-6 have been downgraded by Fitch Ratings.The downgrades were as follows: class B3, from BBB to BB; class B4, from BB to B; and class B5, from B to C/DR5. Fitch also affirmed the ratings on 34 classes from the transaction. The downgrades were based on a deterioration in the relationship between credit enhancement and loss expectations, Fitch said.