  There is a viable vector-tensor gravity (VTG) theory, whose vector field
produces repulsive forces leading to important effects. In the background
universe, the effect of these forces is an accelerated expansion identical to
that produced by vacuum energy (cosmological constant). Here, we prove that
another of these effects arises for great enough collapsing masses which lead
to Schwarzschild black holes and singularities in general relativity (GR). For
these masses, pressure becomes negligible against gravitational attraction and
the complete collapse cannot be stopped in the context of GR; however, in VTG,
a strong gravitational repulsion could stop the falling of the shells towards
the symmetry center. A certain study of a collapsing dust cloud is then
developed and, in order to undertake this task, the VTG equations in comoving
coordinates are written. In this sense and, as it happens in general relativity
for a pressureless dust ball, three different solutions are found. These three
situations are analyzed and the problem of the shell crossings is approached.
The apparent horizons and trapped surfaces, whose analysis will lead to diverse
situations, depending on certain theory characteristic parameter value, are
also examined.
