There could be even up to 500 people inside. More details will be given later.

It could be a problem for those people who are still trapped under the wreckage.

There could be even up to 500 people inside. We have no number of victims right now.

That number is going to increase.

Hospitals are making preparations to take in more of the injured.

The snow accumulated on the roof of the hall could have been the cause of the accident.