(Corrects paragraph 2 to clarify that Huntington acquired Sky Financial in July, not last December)
Nov 16 (Reuters) - Huntington Bancshares Inc (HBAN.O) forecast a surprise loss for the fourth quarter, hurt by a charge of up to 81 cents a share to increase the allowance for loan and lease losses.
The company said it was hurt by a deterioration in Franklin Credit Management Corp's FCMC.O mortgage portfolios. Huntington has a commercial lending relationship with Franklin through Sky Financial Group, which the Ohio bank had acquired in July. (Reporting by Aditi Samajpati in Bangalore; Editing by Pratish Narayanan)