  In hierarchical structure formation scenarios, merging galaxies are expected
to be seen in different phases of their coalescence. Simulations suggest that
simultaneous activity of the supermassive black holes (SMBHs) in the centres of
the merging galaxies may be expected at kpc-scale separations. Currently, there
are no direct observational methods which allow the selection of a large number
of such dual active galactic nuclei (AGN) candidates. SDSS J142507.32+323137.4
was reported as a promising candidate source based on its optical spectrum.
Here we report on our sensitive e-MERLIN observations performed at $1.6$ and at
$5$ GHz, which show that the optical spectrum of the source can be more
straightforwardly explained with jet-cloud interactions instead of the dual AGN
scenario.
