How can I import multiple skeletal meshes from FBX?

I need to have different skeletal meshes after importing them from FBX. Because morph target must affect only on one of them. But every time I import my skinned character - it’s meshes combine. So morph targets begin to affect the new (combined) mesh. And because of different vertex numbering it crashes when any of morph target turns on.
How can I import multiple skeletal meshes from FBX? Or how can I solve this problem another way?