Pope Francis and Austrian church leaders expressed dismay and sorrow after terrorists attack that left at least five dead in central Vienna, and they urged citizens to uphold key values of tolerance and respect.

NICE, France -- French bishops conducted a "penitential rite of reparation" inside a church in which three people were murdered in late October.

MANCHESTER, England -- French bishops ordered a "death knell" to ring from every church of their country Oct. 29 after three people were hacked to death in a basilica in the southern Mediterranean city of Nice.

LONDON -- An archbishop has called a terrorist attack in London in which three people were stabbed "saddening and shocking."

NAIROBI, Kenya -- Catholic leaders in Kenya are sounding an alarm after a terror attack killed three Americans and forced local people to flee.

VATICAN – In the wake of a deadly attack against Coptic Orthodox Christians in Egypt, Pope Francis prayed for the victims, their families and the entire Christian community.

WASHINGTON – While many Catholics took to social media asking for the intercession of Our Lady of Guadalupe in the life of migrants who have come to the U.S. seeking a better life, President Donald Trump called, on Dec. 12, her feast day, for an end to two immigration programs.

WASHINGTON – The nation has experienced "yet another night filled with unspeakable terror" and "we need to pray and to take care of those who are suffering," said the president of the U.S. Conference of Catholic Bishops in Washington.

OXFORD, England - Spanish church leaders urged prayers and national unity after two terrorist attacks left at least 19 people dead.

OXFORD, England – Mali's Catholic church has urged a common front against Islamist violence after al-Qaida-linked terrorists attacked a tourist resort just days before the creation of the country's first cardinal.

As I write this, I’m fixated on a photo of eight-year-old Saffie Rose, the youngest victim of the Manchester bombing. Her picture is part of a newspaper photo array of the young victims of that awful night.

MANCHESTER, U.K. – After what has been deemed a terrorist attack that killed 22 people – mostly youth – at a theatre in Manchester Monday night, local Bishop John Arnold condemned the act, saying there is no justification for such violence.

In late August, as the 15th anniversary of the 9/11 attacks loomed, religious leaders tuned into a webinar to prepare themselves for a possible future disaster.

VATICAN CITY – Pope Francis led pilgrims in praying for peace and for the victims of a terrorist attack at Istanbul's Ataturk Airport in Turkey.