The reinforcements were on their way home to their headquarters in Baler aboard two trucks and an armored personnel carrier when a CDX hit the lead truck, causing it to obstruct the road.
Pauwi na sa kanilang hedkwarters sa Baler ang mga sumaklolong tropa na lulan ng dalawang trak at isang V150 armored personnel carrier nang pasabugan ng CDX ang nangungunang trak at bumalandra ito sa gitna ng kalsada.