The police are searching for the relatives of the third woman in another European country, it further writes.
One of the women worked at the Swedish Prosecution Authority and one woman was employed at Karolinska University Hospital, several media outlets report.
Employees at Karolinska were informed on Monday.
"We have informed employees about what happened. Otherwise, we will refer to the police," writes Henrik Pehrsson, press secretary at Karolinska University Hospital, in an email to Expressen.
The Public Prosecutor's Office also confirms that an employee has died.
Of course, everyone here is in grief and it is something we are trying to process, says Ulrika Holm, Director of Finance at the Swedish Prosecution Authority to SVT.
It was on Friday afternoon that the bus rammed a bus shelter on Valhallavägen in central Stockholm and three people lost their lives.
Had safety barrier
The bus in the accident was equipped with a safety barrier and it could not drive faster than 20 kilometers per hour in the accident area, SL CEO Erik Norling tells SVT .
The SL bus had so-called geofencing, a technology that can also be found on electric scooters, for example, and which makes it impossible to drive above a certain speed within a certain area.
Those types of barriers, we need to see if there is any reason to review them going forward, says Norling in SVT's morning studio.
Suspicions remain
According to information to Dagens Nyheter, it was an acute illness of the driver that caused the accident. This is according to an internal message that was sent to the employees of the bus company. However, the information is denied by the bus company, which says that it has not been clarified what is behind the accident, reports TV4 Nyheterna.
The bus driver has been released, but is still suspected of causing death and causing bodily harm.
"The investigation is in an intensive phase, with both interrogations and technical examinations. The purpose of the investigation is to try to clarify what happened. The suspicions of manslaughter remain for the time being," says prosecutor and head of the preliminary investigation Carolina Frohm in a press release.
