Hours after Israel killed the founder of Hamas in the Gaza strip, Lebanese-based Hezbollah guerrillas shelled Israeli positions along the border. Israel hit back with airstrikes. It's the first such violence in several months.
Hezbollah calls the dead Hamas founder a "great martyr," and says it's shelling "Zionist enemy positions."
The Israeli army says Hezbollah fired anti-tank missiles. Israel is responding with fighter jets and artillery fire against suspected guerrilla hideouts.