From James Hamula’s biography at lds.org:
August 8, 2017: This morning James J. Hamula was released as a General Authority Seventy of The Church of Jesus Christ of Latter-day Saints, following Church disciplinary action by the First Presidency and Quorum of the Twelve Apostles.
According to the Salt Lake Tribune, LDS Church spokesman Eric Hawkins provided the press no details about the removal. But the church did confirm Hamula was no longer a member of the church and that his ouster was not for apostasy.
This is the first excommunication of a LDS General Authority in the social media age. The most recent excommunication of a General Authority prior to today’s announcement involved George P. Lee, who was cut off in 1989 and admitted in court circa 1994 to touching the chest of a 12-year-old girl. The most recent excommunication of an LDS General Authority prior to 1989 occurred in 1943, when Apostle Richard R. Lyman was cut off for a long-term affair with a woman he considered to be his secret plural wife.
I urge readers to reach out in love and compassion to the Hamula family and their friends during this unprecedented public readjustment.
Update: The Deseret News has also published an article about this announcement, which discusses the reasons why the Church excommunicates individuals and the circumstances where they might explain the reason for the action.