Some political and civic groups protested outside the Philippine consulate in central Hong Kong over the deaths, criticizing the Philippine government for not properly handling the situation.
"We strongly urge the Philippine government to give an account of the incident openly, explain the ways the incident was handled," said protester
Leung Chun-ying.
Many Hong Kong citizens showed dissatisfaction with the Philippine government.
"It seemed to me that the Philippine government created the situation," 43-year old housewife Kate Cheung told Yonhap. "I couldn't believe what I was seeing on TV. Did they really think of the hostages' safety before they barged into the bus like that?"
Meanwhile, Hong Kong Secretary for Security Ambrose Lee said late Tuesday the Chinese ambassador to the Philippines, Liu Jianchao, requested that Philippine authorities clearly identify whether the dead hostages were killed by the gunmen or accidentally by the special police during the confrontation.
The survivors and the bodies of the deceased are expected to return to Hong Kong by Wednesday evening.
The Hong Kong government announced flags will continue to be flown at half-staff at all the government offices Wednesday and Thursday as a token of mourning for the victims of the incident.
Social safety and stability of the Philippines, one of the world's most popular tourist destinations, are being questioned as a number of incidents involving foreigners have occurred in the Southeast Asian nation.
A Korean pastor was killed on Monday in a separate armed attack. The pastor, identified only by his surname, Cho, was heading home in his car
from an airport after picking up seven others visiting him from South Korea.
Two others in the group were also kidnapped, but later released, and the assailants stole valuables from the group before fleeing, according to the South Korean foreign ministry.