OH absorption, continuum minus line flux, at 1667 MHz shown in colour shades at a velocity of 59  km s^-1. The contour lines depict the 18 cm continuum emission of the Sgr A complex at intensities of 100 and 150 mJy/beam. Sgr A^∗ is indicated with a plus sign. The OH-streamer is seen running in a northeasterly direction and ends slightly northwest of the position of Sgr A*, and its parts are labelled in the figure. The +50  km s^-1 cloud is seen east of Sgr A^∗.