The bomb killed 17 South Koreans and injured 14 others.
The bomb, mailed to one of the city's largest churches, injured the pastor's daughter.
The bombs killed three people and injured six more.
The three bombs, which were hidden in plastic bags, injured 25 additional people.
The bomb, left in a backpack, killed a woman and injured more than 100 people.
The bombs killed two and injured more than 150.
The bombs injured no one and did little damage.
The bombs killed at least 39 people and injured around 70 others.
The bombs killed 33 people and injured over 300, making it the worst atrocity of the entire 30-year conflict.
The bomb killed 6 people and injured more than 40.