City National Bank has acquired the assets of a Nevada institution that was closed late Friday, marking City National’s second failed-bank acquisition in three weeks.

Regulators shuttered Las Vegas-based Sun West Bank just before the Memorial Day holiday weekend and sold its assets, including seven branch locations, to City National. The branches will reopen Tuesday as City National offices, regulators said.

The acquisition will nearly double City National’s Nevada footprint. The bank, which has been in the state since 2007, had eight Nevada branches prior to the Sun West deal.

“Sun West and City National fit well together, especially given that all seven of Sun West’s banking offices are located in the northern and southern Nevada communities that City National now serves,” said Chief Executive Russell Goldsmith in a statement.

As of March 31, Sun West had $361 million in total assets and $354 million in deposits.

City National, owned by downtown L.A.’s City National Corp., paid a premium of 0.67 percent to the Federal Deposit Insurance Corp. to acquire $311 million of Sun West’s deposits. City National, which purchased $352 million of Sun West’s assets, entered into a loss-share agreement with the FDIC on $280 million of the assets.

The deal will boost City National’s assets to just over $20 billion.

The acquisition comes just weeks after the bank acquired 1st Pacific Bank of California, a San Diego institution that was closed by regulators May 7. In December, City National acquired the failed Imperial Capital Bank in La Jolla.

The failure of Sun West, carried out by the Nevada Financial Institutions Division, is expected to cost the FDIC’s deposit insurance fund about $97 million.