Nigerian authorities are looking into a deadly attack that left at least 22 people dead in northeastern Nigeria. The victims were attending Sunday Mass, when bombs were set off in their Christian parish. That same day yet another attack took place in a different Nigerian village, where an additional 52 people were killed.
Islamist militants known as 'Boko Haram' are being blamed for both incidents. The extremist group has been linked to several violent and deadly attacks in the past five years.