Three hours after initial reports of the attack on Resorts World Manila in Pasay City past midnight on Friday, the injured were taken by ambulance and brought to hospital, as additional police officers arrived to help secure the premises.

According to ABS-CBN News' April Rafales, some were hurt possibly after breaking windows and jumping off the 3rd floor. Others required medical attention because of suffocation.

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ABS-CBN News could not confirm as of posting time how many of those injured were still inside the commercial complex.

Director-General Ronald dela Rosa, chief of the Philippine National Police, said injuries were caused by stampede and not gunfire.

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According to a witness interviewed by Rafales, he saw an armed attacker clad in black and carrying a high-powered firearm surveying one hall. The assailant fired his weapon and did not speak.

Many witnesses referred to the attackers in plural form.

Dela Rosa said the incident should not be described as terror-related.

— With a report from April Rafales, ABS-CBN News