Rockingham detectives are investigating two incidents at the same residence in Shoalwater two weeks ago.
About 5am on Friday, December 14, a projectile was fired at the front of a house on Frederick Street.
No one was injured during the incident but investigations revealed the projectile was discharged from a firearm.
About 11pm the following evening, a burglary occurred at the address when a group of males gained entry by smashing a front window.
Once inside a number of items were stolen, including a portable safe. Upon leaving the address, the males removed a number of external CCTV cameras.
Detectives are calling for anyone with dash- cam or CCTV footage from the Frederick Street Shoalwater area around the time of both incidents to help.
Anyone with information can contact Crime Stoppers on 1800 333 000 or report online at crimestopperswa. com. au.