SINGAPORE - The structure of the warehouse at 65 Sungei Kadut Loop - which was ravaged in a fire on Wednesday (Nov 2) - is stable, but the building will remain closed until more detailed investigations and rectification works are done.

Revealing its findings a day after the incident, the Building and Construction Authority (BCA) said it has directed the building owner to engage a professional engineer to carry out the investigations and recommend the rectifications.

The building, which includes an adjoining office block, is leased by furniture dealer Winter International Group.

The authorities were alerted to the incident at about 5am on Wednesday.

The fire, which resulted in seven people being trapped in the premises but all were successfully rescued.

The BCA said on Thursday (Nov 3): "The three-storey building structure is in a stable condition with localised damage to the second storey floor slab and concrete spalling on the floor slabs of the building,"

Its inspection found the fire had caused the metal roof at the single storey part of the building to collapse, the BCA added.

"The adjacent buildings were not affected by the fire," the authority added.

The blaze was so fiery there there were 80 firefighters involved at the height of the fire, reports said. A total of 19 Singapore Civil Defence Force (SCDF) vehicles, including two unmanned firefighting machines, were used.

According to data shared by the SCDF, there were 34 fires in warehouses between January and September this year.

For the whole of 2015, there were 49 cases, while there were 42 fires the year before (2014).