Widely shared photos of the residential block in Taman Duta recently have concerned the public, even though the residents have left the property.
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Joel Brown, a member of the management committee, told StarMetro that only one block was unsafe.
A check by The Star saw two lorries carrying construction materials in the area, believed to be for strengthening works.
He said the condominium was located on lower ground, resulting in the soil there catching water runoff from the surrounding area.
Sheets can be seen covering the slope at Seri Duta 1 condominium.