Two construction workers were injured at the Nelson Mandela Square in Sandton on Tuesday, according to a report by News24.

The ceiling of an empty shop on the second level collapsed on them, said CEO of JHI Properties Nomzamo Radebe.

They were treated on the scene and no customers were injured, she said in a statement.

“Traffic control measures have, however, been put in place around that area to ensure the safety of shoppers.”

This is the second third injury from structural collapse the mall has suffered this year.  Last month 25-year-old Elfi Loambo was severely injured when a section of the roof connecting the banking mall in Sandton City and the Nelson Mandela Square caved in and fell on her foot. She has had to undergo several operations.

Earlier last month a woman tripped over a carpet and injured her hip, News24 reported.

“There are carpets that have been placed in some parts of the mall. I think the carpets are used to cover the cables since there seems to have been some construction going on,” the woman’s daughter said at the time.

“So it’s either the carpet was not taped down or the tape had come undone. She got her foot underneath the carpet and she fell forward,” said the woman, who asked not to be identified.

–News24