Sequence of NIR spectra collected for our sample of ILRTs. AT 2019abn is shown in red, AT 2019udc in green and NGC 300 OT in blue. The most prominent emission lines are marked on the spectra of NGC 300 OT. The positions of telluric features are marked with a circled plus symbol. The first spectrum of AT 2019abn displayed is the combination of two spectra obtained at phases −21 and −20 days with respect to maximum.