A pupil of Ateneo de Manila Grade School (AGS) died Tuesday after being pinned in between two vehicles inside the school campus.

Amiel Alcantara, 10, a Grade 4 pupil at the school, was on his way to their family vehicle along with siblings Jana and Javier, nanny Tata Suarez, their driver Khan Nyugen Alcasabas and a friend of Javier around 3:45 p.m. when a Toyota Hi-Ace van suddenly lurched towards a Honda CRV and another vehicle.

Alcantara was found underneath the two vehicles. He was hurriedly pulled out and rushed to New Era Hospital by another parent, Alcasabas, and Maria Teresa Torres, the driver of the van.

Alcantara died at the hospital at around 5 p.m. after suffering from head injuries.

Suarez meanwhile suffered fractures in her shins and ankles and was taken to the school infirmary for treatment.

The Alcantaras formally filed a complaint against Torres, a parent of a fellow Grade 4 pupil, who was also waiting for her child at the time of the incident.

Prior to the incident, Torres' driver alighted from their van, after which she took over the wheel to drive it forwards. An official statement from Ateneo de Manila University said that according to her however, the van "accelerated uncontrollably" and hit the victims and the cars.

The Torres family declined to be interviewed.

The school administration meanwhile assured that there will be a "proper and thorough" investigation of the matter.

"The Ateneo assures the community that a proper and thorough investigation of the incident has been launched, and that counseling assistance is being provided to the affected families and students," the statement said.

"Amiel, son of [Jose] ‘Pepe’ Alcantara, was a valiant and responsible Boy Scout and a friend to many students," the statement said.

"Masses and prayers are also being offered all over campus for the repose of the soul of Amiel, whose remains lie in state at the Chapel of the Holy Guardian Angels at the Ateneo Grade School. As a final tribute to Amiel, the AGS Boy Scouts will forego their scheduled pass in review tomorrow and instead hold a mass for their fellow scout," the statement added. With a report from Ryan Chua, ABS-CBN News