  We discuss results from very long baseline interferometry (VLBI) observations
of two Seyfert galaxies with double peaked emission lines in their SDSS optical
spectra. Such AGN are potential candidates for the presence of binary black
holes, which can be resolved on parsec-scales with VLBI. Our observations do
not detect twin radio cores but rather nuclear outflows in these Seyferts.
These outflows could be interacting with the emission line clouds producing the
double peaks in the emission lines.
