  We study by means of bulk and local probes the d-metal alloy Ni$_{1-x}$V$_x$
close to the quantum critical concentration, $x_c \approx 11.6\%$, where the
ferromagnetic transition temperature vanishes. The magnetization-field curve in
the ferromagnetic phase takes an anomalous power-law form with a nonuniversal
exponent that is strongly $x$-dependent and mirrors the behavior in the
paramagnetic phase. Muon spin rotation experiments demonstrate inhomogeneous
magnetic order and indicate the presence of dynamic fluctuating magnetic
clusters. These results provide strong evidence for a quantum Griffiths phase
on the ferromagnetic side of the quantum phase transition.
