Age discrimination?

I’m no spring chicken, and I can run with the best of them!
I recently left a position I had been in for 7 years. I was dedicated and always eager to help. I know I probably should not have left but I did not have any advancement potential within that section of the department. Today I messaged one of the hiring officials in the same department to see if they needed someone to fulfill a role I know that is becoming available of within the next month or so. They advised they had a couple positions coming open and that the “younger crowd was interested in them” but to wait for the posting. Is this age discrimination? Or just a way to blow me off?