There are 2 versions:
1. across the border from Aita al-Shaab
2. Lebanese police, who confirmed the capture, said the two soldiers were seized after they “infiltrated� the border near the village of Aita el-Shaab.

Hizbullah official statement: "Hezbollah captured two Israeli soldiers near the border with occupied Palestine, and the captives have been moved to a safe area," Hezbollah said in a statement faxed to The Associated Press.

Here's map of the area. Having seen the footage where the humvee was struck the road looks like the patrol roads the Israelis have along the border.
Here's a map of the region.

map