A prominent Florida megachurch says a grandson of the Rev. Billy Graham has stepped down as its pastor after a "moral failure."

Coral Ridge Presbyterian Church said Monday that Tullian Tchividjian resigned several days ago for actions that "disqualify him from continuing to serve as senior pastor."

The Fort Lauderdale church offered no further details. Tchividjian did not comment on the matter on his webpage and did not respond to a call seeking comment.

He joined the seminary after years of youthful transgressions, offering a prodigal son story when he ascended to the ministry.

He became pastor of Coral Ridge in 2009, but the choice of him to follow founding pastor D. James Kennedy, an evangelical luminary, divided the congregation.