Cardinal Daniel DiNardo, president of the bishops conference says no bishop, no matter how influential, is above the law of the Church.
Bishop Gustavo Oscar Zanchetta, 54, will "abstain from working" during the preliminary inquiry, which will ascertain whether there is sufficient evidence to take the case further.
The case is the latest in a litany of child sexual abuse scandals to have rocked the Roman Catholic Church.
Priests gathered in Ukraine’s most prominent 11th century St. Sophia Cathedral early Saturday and for eight hours celebrated the liturgy.
Defrocking is considered the Church's harshest penalty for priests.
A Chinese priest, who previously worked in an underground church in China and returned to Rome last year, says negotiations on the recognition of underground bishops by Beijing are underway.
The Holy See is Taiwan's last remaining diplomatic ally in Europe.
Bishop Franco Mulakkal is accused of raping a nun 13 times in the same room between 2014 and 2016.
The announcement had been expected amid speculation that it could lead to a normalisation of ties between the Vatican and Beijing.
The arrest comes at a time when the state's Christian community is reeling from a string of cases - including the arrests of five priests last month on allegations of sexual assault.
The nun from the southern Indian state of Kerala has accused Bishop Franco Mulakkal, who heads the Diocese of Jalandhar, of raping her repeatedly over a period of two years.
Cardinal Joseph Zen -- the retired but still outspoken former archbishop of Hong Kong -- told Bloomberg News last month that he wrote to Francis to denounce efforts by the Vatican to reach a landmark agreement with Beijing on the appointment of bishops in China.
Bishop Franco Mullackal, who has rejected the accusations, has been called for questioning in the southern state of Kerala on September 19, the Press Trust of India reported.
Bishop Charles H. Ellis III led Franklin's funeral and awkwardly greeted Grande on stage after she performed.
A murky murder saga is gripping Egypt's Coptic Church and the fallout is rumbling through an ancient community already facing grave threats.
The killing last month of Bishop Epiphanius, a 64-year-old scholar who had led the Abu Makar Monastery in Wadi Natroun, prompted the church to impose strict new measures on its clergy.
Bishops Alejandro Goic Karmelic of the city of Rancagua and Horacio del Carmen Valenzuela Abarca of the city of Talca would be replaced by commissioners, known as apostolic administrators, a statement said.
Human Rights Watch's Australian director compares Canberra's response to Anwar's release with its muted response in the past.
Sarah Mullally was installed as the 133rd Bishop of London at St Paul's Cathedral.
Britain's Prince Harry and American actress Meghan Markle have asked a senior U.S. bishop to deliver the address at their wedding next Saturday.
Pope Francis meets the victims either individually or in groups, several times a month to 'help them heal the grave wounds caused by the abuses they suffered'.
Foreign Minister Julie Bishop urges Malaysia Airlines to meet its obligations under the Montreal Convention in relation to compensation in a timely manner.
Their visit comes after the Vatican chastised Hong Kong cardinal Joseph Zen who accused it of 'selling out' to Beijing over the bishop issue.
Bashar Warda, a leading Iraqi bishop, has called upon the US to aid Iraq's Christian populace.
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