Full observed spectrum of the off-nuclear HII region. We mark the wavelengths of the spectral lines associated to Wolf–Rayet stars (around 4700 Å observed wavelength) and the He I lines, which could be indicative of broad stellar components. The lack of broad features in these spectral lines indicates that the origin of the Hα broad wings is not related to Wolf–Rayet stars or due to contamination from supergiants or luminous blue variables.