SWAT cat is missing.

The Boston Police Department's SWAT team is looking for a stray that's become its unofficial mascot.

The department posted a note on Facebook this week seeking help finding "SWAT Cat," which has white, black and light orange fur. The note includes a picture of the feline lounging on the hood of an armored tactical truck.

The department says the cat has been beloved part of the team since 2013.

The department says "SWAT Cat" would show up for chow time with the unit and roll over for belly rubs from officers. The cat hasn't been seen for about three weeks.

The department's Facebook post that it was sad the cat wasn't around anymore because she'd become like family.