  As one of Weyl semimetals discovered recently, NbP exhibits two groups of
Weyl points with one group lying inside the $k_z=0$ plane and the other group
staying away from this plane. All Weyl points have been assumed to be type-I,
for which the Fermi surface shrinks into a point as the Fermi energy crosses
the Weyl point. In this work, we have revealed that the second group of Weyl
points are actually type-II, which are found to be touching points between the
electron and hole pockets in the Fermi surface. Corresponding Weyl cones are
strongly tilted along a line approximately $17^\circ$ off the $k_z$ axis in the
$k_x - k_z$ (or $k_y - k_z$) plane, violating the Lorentz symmetry but still
giving rise to Fermi arcs on the surface. Therefore, NbP exhibits both type-I
($k_z=0$ plane) and type-II ($k_z \neq 0$ plane) Weyl points.
