Regulators on Friday shut banks in Georgia, Michigan, Minnesota, Missouri, and California, bringing the number of bank failures this year to 120 amid the struggling economy and a cascade of defaults on loans.

The Federal Deposit Insurance Corp. took over United Commercial Bank in San Francisco, with $11.2 billion in assets and $7.5 billion in deposits. East West Bancorp Inc., parent company of East West Bank based in Pasadena, Calif., is buying all of the deposits and most of the failed bank’s assets.