Yee posted a YouTube video that said Christians were "power-hungry and malicious" people who "deceive others into thinking that they are compassionate and kind."
"What is coming will be more grievous and more bitter," the statement from the Islamic State group said.
Francis would be the third pope to visit Cuba, after St. John Paul II in 1998 and Pope Emeritus Benedict XVI in 2012.
The resignation was offered under the code of canon law that allows a bishop "who has become less able to fulfill his office because of ill health or some other grave cause" to resign.
When British police were looking for alternative ways of reaching young people to highlight the dangers of radicalization, they knew who to call.
(RNS) Fire officials believe the blaze was started by a malfunctioning hot plate being used to keep food warm during the 25-hour Sabbath, when religious restrictions forbid cooking.
(RNS) Mohammed Emwazi, who is in his mid-20s, is believed to be a Kuwaiti-born British man from west London. The BBC said he was known to British security services, who chose not to disclose his name for operational reasons.
(RNS) The United Kingdom-based Syrian Observatory for Human Rights said the civilians were kidnapped from 11 villages near the town of Tal Tamr over the past three days by the militants, who control vast swaths of Syria and Iraq.