— -- At least 35 people died from smoke inhalation when a gunman stormed Resorts World Manila in the Philippines Thursday in an attempted robbery that saw him torch gambling tables, creating a choking amount of smoke, law enforcement and company officials said.

After attempting to flee with the casino's gambling chips, the gunman left the casino to a room in an adjoining hotel, where he holed himself up before taking his own life, Resorts World COO Stephen Reilly said in a presser conference on Thursday.

Police told ABC News the initial investigation indicated that all of the victims, who were found mostly on two floors, died from smoke inhalation as the resort was set on fire.

The bodies were taken in for identification and families were notified before the identities were then made public.

President Donald Trump had initially referred to the attack as a "terrorist attack," but authorities said the motive behind the shooting was not clear but it was not believed to be terrorism.

Philippines National Police Chief Ronald Dela Rosa denied reports that the incident is related to ISIS.