Well look at this. UNIFIL is now saying the IDF activity did not warrant the LAF response:

UNIFIL says IDF activity did not warrant Lebanese fire

Israeli army officials say peacekeeping forces touring site of Tuesday’s deadly skirmish determined that Lebanese soldiers had no reason to open fire on IDF troops performing routine border activity

UNIFIL forces who toured the site of Tuesday’s deadly exchanges of fire on the northern border said the IDF’s activity did not warrant the attack launched by Lebanese Army soldiers, Israeli army officials who spoke to UNIFIL representatives said.

According to the IDF, soldiers were performing routine operations in a border-area enclave within Israeli territory when they were ambushed by Lebanese troops.

Continues.