Pakistan, Muslims Killing Muslims.

So to show how tolerant and peaceful Islam can be, a group of Hazara Muslims (Sunnis) attacked and killed some Shiite Muslims.
Don't you just like Islam a whole bunch more now, I mean look how tolerant and Peaceful Islam is, as long as you are the right kind of Muslim.

New York Times
Unidentified gunmen opened fire on a bus in southwest Pakistan on Tuesday, killing at least 13 Shiite Muslims and wounding another seven, officials said.

The attack took place on the outskirts of Quetta, the capital of southwestern Baluchistan Province, and followed what is becoming a grim pattern of sectarian attacks in the region. Sunnis belonging to the extremist sectarian group Lashkar-e-Jhangvi in the region have repeatedly attacked minority Shiites, who are mostly members of the Hazara ethnic group.

On Tuesday morning, attackers riding in a van intercepted the bus carrying mostly Shiite commuters traveling to a market. The gunmen forced non-Hazara passengers to get off the bus and then opened fire on the Hazara passengers inside the bus, according to Abdul Khaliq Hazara, chairman of the Hazara Democratic Party, which represents the community.