WASHINGTON - Regulators on Friday shut down Silver State Bank, saying the Nevada bank failed because of losses on soured loans, mainly in commercial real estate and land development.

It was the 11th failure this year of a federally insured bank.

Nevada regulators closed Silver State and the Federal Deposit Insurance Corp. was appointed receiver of the bank, based in Henderson, Nev. It had $2 billion in assets and $1.7 billion in deposits as of June 30.

Andrew K. McCain, a son of Republican presidential nominee John McCain, sat on the boards of Silver State Bank and of its parent, Silver State Bancorp, starting in February but resigned in July citing "personal reasons," corporate filings with the Securities and Exchange Commission show. Andrew McCain also was a member of the bank's audit committee, responsible for oversight of the company's accounting.

The younger McCain, who is the chief financial officer of Hensley & Co., the beer distributorship of which Cindy McCain is chairwoman, is the Arizona senator's adopted son from his first marriage.

Andrew McCain's position on the Silver State board and departure were first reported Friday by The Wall Street Journal online.

Silver State Bank ran into difficulty because of a substantial amount of "poor-quality loans primarily related to real estate development" in southern Nevada and other distressed markets, FDIC spokesman David Barr said.

"When the housing market slowed down, people who bought raw land to build new homes didn't need that land so they couldn't do anything with it and repay their loans. So those loans went bad," Barr said.

Silver State Bancorp recently reported a net loss for the second quarter of $73.2 million, or $4.84 a share, compared with net profit of $6.2 million, or 44 cents a share, in the same period last year.

Construction and development loans have been the fastest-growing category of troubled loans for U.S. banks, and many banks have heavy concentrations of them in their lending portfolios, according to the FDIC. Some small banks are considered especially vulnerable. Delinquent loan payments and defaults by commercial and residential developers have surged to the highest levels since the early 1990s - the latter part of the savings and loan crisis.

The FDIC said Silver State Bank's insured deposits will be assumed by Nevada State Bank of Las Vegas. Its branches will reopen Monday as offices of Nevada State Bank in Nevada and National Bank of Arizona in Arizona.

The agency said depositors of Silver State Bank will continue to have full access to their deposits.