Those who were evacuated have been allowed to return to their apartments and traffic outside is no longer closed.
A man was arrested on suspicion of starting the apartment fire.
The apartment is cordoned off while waiting for the technicians to carry out an investigation.
The man arrested is in his 50s and is suspected of general dangerous negligence.
In addition to the rescue service, several ambulances were on site, but according to SOS, no person needed to follow from there.