We report observations of lightning-induced transient emissions (LITEs) in or below the OH airglow layer observed from the Imager of Sprites and Upper Atmospheric Lightning (ISUAL) onboard the FORMOSAT-II satellite. The ISUAL team conducted a nine-day campaign in January 2007 using both the broadband and narrowband filters on the CCD imager. It is found that LITEs occur more frequently in the OH airglow layer than below. It is also found that the observations of LITEs below the OH airglow layer by the narrow-band filter are rare. The observations of LITEs by the narrowband filter are the first of its kind in existence. Our data analysis shows that there is a significant intensity increase in the OH airglow layer when there is lightning and a residual intensity increase post the lightning activity. We propose that LITEs in the OH airglow layer could be due to OH species.