MANILA, Philippines (AP) — Police say at least five people including a 2-year-old boy were killed and 15 others were injured when a passenger bus rammed a stalled truck along the highway in eastern Philippines’ Camarines Sur province at the start of the Easter week exodus of vacationers to provinces.

Police Supt. Vicente Marfori said the driver of the bus from Manila is under investigation in Libmanan town, where the accident happened early Wednesday.

The whole right side of the bus was dislodged by the collision.

Marfori says the truck’s driver was in shock in a hospital.

The four-day Easter week holidays officially start Thursday but vacationers have already started traveling to the provinces.