The Sacramento Bee announced Thursday the resignation of an award-winning columnist, the latest in a series of cases across the nation in which journalists had been forced from their jobs because of questions about the veracity of their reporting.

In an explanation to readers, Bee Executive Editor Rick Rodriguez wrote that Diana Griego Erwin could not adequately answer questions that first arose last month about whether "people mentioned in several recent columns actually existed."

Griego Erwin, who shared a Pulitzer Prize in 1986 while at the Denver Post and who was a columnist for the Orange County Register, said in a statement to the Bee that she had done "nothing wrong."

"This inquiry came at the end of a six-month string of personal crises in my life," Griego Erwin told The Times in an e-mail, "and, frankly, I didn't have the emotional reserve to answer The Bee's questions quickly enough."

The departure of Griego Erwin, who wrote three columns a week, continues the run of recent embarrassments for newspapers, many of which have cost writers their jobs.

Last week, USA Today

That followed on the heels of the resignation of veteran Atlanta Journal-Constitution reporter Al Levine, who pilfered information from two Florida newspapers without crediting them.

Los Angeles Times reporter Eric Slater was dismissed last month when editors at the newspaper could not verify information in an article he wrote about fraternity hazing at Cal State Chico.

The recent headliner in the string of news scandals was bestselling author, sports columnist and TV personality Mitch Albom, who was suspended from the Detroit Free Press for describing a scene in the stands at an

did in the past.