Stiff Touch ID button

Hi

My touch id button feels like there is something stuck underneath it, or on the sides. As in, when I try to press it, I hear a sound like something gives way, and it takes a hard press to do so. Subsequent presses at the same time feel almost normal (soft squishy feel). Even if I get back to it after a minute, its stiff the first time, and almost normal if I want to press it three times in a row.

Any ideas whether the Touch ID button is removable, and clean underneath?