The Boston Globe said Friday it will suspend columnist Kevin Cullen without pay for three months after an examination of his work found significant problems in a series of radio interviews and some public remarks he made in the aftermath of the Boston Marathon bombings in 2013.

When he returns, Cullen will work as a general assignment reporter for the first two months before returning to his role as a columnist, Globe publisher John W. Henry and editor Brian McGrory wrote in a letter to readers. Cullen will be barred from outside broadcast interviews for the first six months after his return, and subsequent appearances will be given heightened editorial scrutiny.


“Our review leads us to a conclusion that Mr. Cullen damaged his credibility,’’ Henry and McGrory wrote. “These were serious violations for any journalist and for the Globe, which relies on its journalists to adhere to the same high standards of ethics and accuracy when appearing on other platforms. Our review also leads us to believe that Mr. Cullen did not commit irrevocable damage.’’