One of most ancient churches in Myanmar was burned and destroyed.
The pope baptized 13 babies in the Sistine Chapel on Sunday.
St. John XXIII was also previously buried in the same place.
Zen was elevated to cardinal by Benedict in 2006.
The underground Chinese Catholics continue to face crackdown from Beijing in the past years.
Since the beginning of the 1950s, there has been no official relationship between the Vatican and Beijing.
Both South Sudan and the DRC continue to suffer from internal unrest, which has caused the displacement of millions.
Four days of fighting has led to hundreds of civilian deaths and displaced tens of thousands of Ukrainians.
In many cases, known Christians must flee Afghanistan or risk being killed.