  Radio recombination lines at a wavelength of 20 cm reveals the presence of an
extended component of ionized gas of lower density in the Sgr A complex. This
component extends well beyond the thermal `mini-spiral' SgrA-West, which seem
to be embedded in it. The low-density component is present over the entire
extent of SgrA East and possibly beyond and it is responsible for the turnover
in the spectrum of SgrA East and the halo observed by Pedlar et al (1989) at 90
cm. The radial velocity of the extended ionized gas range from +50 km/s to -200
km/s with minima of emission near -50 and -150 km/s. The total mass of the
low-density component is estimated to be 10^4 solar masses. A possible extended
feature at a high velocity of 470 km/s is also detected, but needs further
observations to confirm it.
