According to local people, the house, which was built in the 1980s, is now a nem (spring rolls) restaurant and all five victims are staff at the restaurant.
The last victim were found dead at 11.20am. Four victims have been recovered earlier but one of them died while the injured rushed to local hospital for treatment.
Hoang Quoc Dinh, chief of the Hanoi Fire Prevention and Fighting Police, told Dan Tri/DTiNews that seven other people were able to flee when the building collapsed.
Chairman of Hanoi People's Committee, Nguyen Duc Chung (centre) came to direct the rescue work
Vice chairman of Hanoi People's Committee, Nguyen The Hung (centre), arrived at the scene early to direct the rescue work.
An ambulance is carrying injured people to hospital