Slippery Rock and Karns City remain undefeated as both won in football action Friday night.

Slippery Rock grabs the Region 3 district title with a win over Sharon, 28-13. Karns City cruised by Keystone, 42-7.

Here are the scores of all the area high school games.

Fox Chapel 21, Butler 0

Penn Hills 55, Seneca Valley 28

Indiana 28, Knoch 25

Mars 21, Hollidaysburg 0

Freeport 50, Burrell 10

Karns City 42, Keystone 7

Redbank Valley 26, Moniteau 14

Brookville 26, A-C Valley 6

Slippery Rock 28, Sharon 13

Hickory 48, Grove City 12