Bizarre SMS textsw/photos addressed to my ICE

I started receiving bizarre texts w/photos adddressed to ICE (mobile) which I guess is my In Case of Emergency contact number for my bb. They are from area codes that are local and also for out of state (where I have some relatives).

First 2 texts had photos of a baby and one of a pre-teenager with the message "I just woke up", so this is extremely creepy and alarming. The one I just received has a message with my niece's name in it, but doesn't make any sense at all.

I've had my bb (curve 8330 from Verizon) since the spring and never had this happen. Please advise how to handle this. Thanks so much!