May 23 (Reuters) - The U.S. Office of the Comptroller of the Currency said on Thursday it has issued an enforcement action against the wealth management unit of regional lender Comerica.

The regulator said it had found "unsafe or unsound practices," including those relating to Comerica's risk governance and internal controls.

Comerica's stock was down 6.5% in late afternoon trading. (Reporting by Niket Nishant in Bengaluru; Editing by Shailesh Kuber)