This happened August 28, but this incidence could connect to something happened to Reptilian Secret Underground Base underneath it.
Just before the building collapse, people heard small explosions and mysterious yellow smoke appeared from the underground.
Then the building started sinking into underground.
That means Reptilian Secret Underground Base got explosions and collapsed.
This apartment is just for young single people. It is natural that this building is connected to Reptilian Secret Underground Base so that Reptilians can easily abduct those young people living in that building.