Story updated to include statement of Mandaluyong police chief Senior Supt. Moises Villaceran.

Metro Manila (CNN Philippines, December 28) — It may be a case of mistaken identity that killed a person in a shooting incident in Mandaluyong City late Thursday.

Video of the incident, which happened around 10:25 p.m. along Shaw Boulevard, showed men shooting at a white Mitsubishi Adventure parked across a condominium.

Police recovered a body from the van.

S/Supt. Moises Villaceran, Mandaluyong police chief, said barangay tanods involved in an earlier shooting incident in Barangay Addition Hills, which straddles Mandaluyong and neighboring San Juan City, told the police the white van was carrying the suspect.

However, Villaceran said they found out the van's passengers were helping Jonalyn Ambaan, who was shot at the Addition Hills incident, and were rushing her to a hospital.

"Allegedly habang hinahabol, nagpapaputok rin yung mga barangay tanod. So na-alarm yung mga pulis natin, nag-conduct kami ng dragnet operation para ma-corner ang suspect, not knowing na hindi pala ito ang sasakyan ng suspect," Villaceran said.

[Translation: Allegedly while chasing the van, the barangay tanod was also shooting them. So, the police was alarmed and we conducted a dragnet operation to corner the suspect, not knowing that this was not the suspect's vehicle.]

Ambaan eventually died in the hospital. Jomar Hayaun, one of the passengers of the van, was killed in the incident.

Ambaan's partner Eliseo and their companion Danilo Santiago remain in critical condition at the Mandaluyong City Medical Center.

Their three other companions who had earlier surrendered are in police custody.

Villaceran said the Addition Hills incident was triggered by an altercation between construction workers and their neighbors who they said were making too much noise.

He added at least nine police officers are also in custody, along with the responding barangay tanods for investigation.

The police chief said they will be dismissed from service and be charged with murder or homicide if investigations show they are at fault.

He also said it is still unclear whether the van's passengers were armed and shot back at the police.

CNN Philippines' Senior Correspondent Ina Andolong contributed to this report.