Three people have been killed and four have been injured after an apartment collapsed in western Poland. 

According to local authorities, rescuers are still working to account for five others that are missing.

The search and rescue operation is expected to continue through to Sunday, according to Regional Governor Pawel Hreniak.

A spokesman for firefighters in Wroclaw, Daniel Mucha said that the collapse occurred early Saturday morning  in the town of Swiebodzice.

It's believed that the collapse of two floors of the building could have possibly been caused by a gas explosion. Those that were injured were later taken to hospitals in Swiebodzice and in Wroclaw.

It's also believed that two of the victims were schoolchildren.

The firefighters spokesman said that 23 units of firefighters and dogs are still searching the rubble.

The governor of Swiebodzice, Bogdan Kozuchowicz, said the pre-World War II building was recently renovated and had been in good technical condition.