- It ran around like a ferret.
We called the guard who at first didn't think it was true.
Later it climbed up to the 13th floor, says Lovisa Eld, who works at the hospital.
The staff hung "like hawks in the windows".
- It was the shock of the world.
At first we thought it was a ferret.
It ran back and forth on the railing and climbed a flower stand.
- The floor numbers start with 7 in the basement, so 13 actually corresponds to 5 or 6, says Helena Björäng, who filmed the marten's wanderings in the infirmary.
The marten is found in woodland throughout the country except on Gotland.
According to the species database, the population is estimated at approximately 35,000 individuals.