Hamula was a member of the General Authority Seventies, which presides over all quorums of the Seventies.
According to Deseret News, the Church leaders said that the excommunication did not happen due to disillusionment or apostasy.
Hamula was removed Tuesday from a mid-level leadership council for undisclosed reasons based on disciplinary action by the Church of Jesus Christ of Latter-day Saints' highest leaders, according to church spokesman Eric Hawkins.
But on Tuesday, the church was thrown into the limelight after it announced that it had excommunicated one of its high-ranking officials in the first such disciplinary incident in nearly three decades. Prince added that excommunications are more common in the Mormon Church, however.
The expulsion and excommunication of a general authority within LDS is rare.
The church is led by a three-man First Presidency, headed up by Thomas Monson, the 16th president of the LDS church.
"The last leader to be excommunicated was the late George P. Lee in 1989 after Lee, an American Indian, called Mormon leaders racist". Upon his return to Church headquarters, Elder Hamula served as Assistant Executive Director of the Church History Department from 2014 to 2016.
People walk past Salt Lake temple as they arrive to attend the biannual general conference of the Church of Jesus Christ of Latter-Day Saints in Salt Lake City, Utah, on April 5, 2014.
The Mormon church allowed the removed members to rejoin by getting baptized if they showed honest repentance, the Salt Lake Tribune said in its report.
'Church leaders have a solemn responsibility to keep confidential all information they receive in confessions and interviews. The publication's content supports the doctrines, principles and practices of the Church. "This might be a deeply intimate, private matter that should stay between him and his family and church leaders". Church leaders said he was excommunicated because of "apostasy and other conduct unbecoming a member of the church". He later admitted to attempted child sex abuse.