(M)Citrus Mint Cooler

1 cup fresh lemon juice
1 cup fresh orange juice
2 cups sugar
2 1/2 cups water
10 sprigs mint
32 fluid ounces ginger ale
water

Place first five ingredients in a saucepan; bring to a boil, stirring until sugar dissolves. Cover; remove from heat and let steep until cool. Strain. Cover and refrigerate. To serve, fill glasses or a pitcher with equal amounts of fruit juice, ginger ale and water. Add ice and serve immediately.