Top panel: Composite image, using a H₂ 2.122 μm (red) and [Fe ii] 1.644 μm (green) colour coding, of a FOV of L723 showing part of the HH 223 outflow (continua were not subtracted). Crosses mark the position of the radio continuum sources SMA1 and SMA2, close to the H₂ structure K1 (see also Fig. 8). Bottom panel: Close-up of the rectangle enclosing HH 223. Note the spatial displacements between the [Fe ii] and H₂ emissions in the knots. North is up and East is to the left.