  We observed the K7 class III star NO Lup in an ALMA survey of the 1-3 Myr
Lupus association and detected circumstellar dust and CO gas. Here we show that
the J = 3-2 CO emission is both spectrally and spatially resolved, with a broad
velocity width ${\sim}19$kms$^{-1}$ for its resolved size ${\sim}1''$
(${\sim}130$ au). We model the gas emission as a Keplerian disc, finding
consistency, but only with a central mass of ${\sim}11M_{\odot}$, which is
implausible given its spectral type and X-Shooter spectrum. A good fit to the
data can also be found by modelling the CO emission as outflowing gas with a
radial velocity ${\sim}22$kms$^{-1}$. We interpret NO Lup's CO emission as the
first imaged class III circumstellar disc with outflowing gas. We conclude that
the CO is continually replenished, but cannot say if this is from the break-up
of icy planetesimals or from the last remnants of the protoplanetary disc. We
suggest further work to explore the origin of this CO, and its higher than
expected velocity in comparison to photoevaporative models.
