Harvard University police are investigating reports that a man came to the university's Kennedy School of Government to solicit donations for a charity connected to the Islamic State.

Kennedy School spokesman Doug Gavel said in a statement Friday that there "does not appear to be a threat to the community."

He says an email was sent to members of the Kennedy School community on Thursday informing them of the solicitations, which occurred Tuesday.

The man has not been seen since.

WFXT-TV reports that the internal email said the man in his late 20s or early 30s identified himself as a Harvard student, but it does not appear is if he had any affiliation with the Ivy League school.