In a method for detection and neutralization of underwater objects which
are present in a sea region, in particular mines, a two-dimensional or
three-dimensional image of the seabed is created by means of an unmanned
first underwater vehicle during a reconnaissance mission in a sea region
section by means of optical and/or acoustic sensors, and this image is
evaluated for the presence of underwater objects, after completion of the
reconnaissance mission. At least one underwater object which is present
is marked in the image, and the image which has been provided with the
object marking is stored in an unmanned second underwater vehicle, which
is equipped with the same sensors and additionally with a neutralization
unit. During a neutralization mission by the second underwater vehicle in
the same sea region section, image elements of the seabed are created
continuously by means of the sensors and are compared with the stored
image of the seabed. The second underwater vehicle is guided to the
marked underwater object on the basis of the comparison data, and
activates the neutralization unit there.