Connecticut’s attorney general has begun a probe into two charities operated by a man who is leading a high-profile effort to help a Yale hockey player who has leukemia, says The New York Times.

Richard Blumenthal, the state’s attorney general, said Tedd Collins IV, founder of the health charities Become My Hero and Natasha’s Place, had failed to notify Mr. Blumenthal’s office of his efforts to raise funds in the state, which is mandatory in Connecticut. Mr. Collins is also being investigated for fraud in Kentucky, where he lived recently.

Mr. Collins acknowledged to The Times that he had not legally registered his organizations in Connecticut but declined to answer questions about his fund raising.

The charity founder has spearheaded efforts to find a stem-cell donor match for an ailing Yale student, Mandi Schwartz. Yale University had been directing Ms. Schwartz’s supporters to Mr. Collins’s charities, but university officials said they would reconsider their relationship to him if the investigation uncovered any wrongdoing on his part.