fgets isn't using the set up locale

Considering the following code:

#include <stdio.h>
#include <locale.h>

int main()
{
    char test[100];

    printf("WITHOUT LOCALE: á, é, í, ó, ú, ü, ñ, ¿, ¡\n");

    setlocale(LC_CTYPE, "Spanish");

    printf("WITH LOCALE: á, é, í, ó, ú, ü, ñ, ¿, ¡\n");

    fgets(test, 100, stdin);

    printf("WITH FGETS AND LOCALE: %s\n", test);
    return 0;

}

And the following input for fgets:

á, é, í, ó, ú, ü, ñ, ¿, ¡

I'd expect it to support the special characters according to the locale that has been set up beforehand. However, this is the output:

WITHOUT LOCALE: ß, Ú, Ý, ¾, ·, ³, ±, ┐, í
WITH LOCALE: á, é, í, ó, ú, ü, ñ, ¿, ¡
WITH FGETS AND LOCALE:  , ', ¡, ¢, £, ?, ¤, ¨, ­

Any idea about what could be happening?