Two active-duty marines are under investigation for social media posts where they seem to be making violent threats against gay bars, Marine Corps Times reports.

The investigation started after a photo was posted on a closed Facebook group for male marines that showed a marine corporal in uniform pointing a rifle at the camera with the caption, “Coming to a gay bar near you.”

The California-based I Marine Expeditionary Force is investigating both the corporal in the photo and the Marine who posted it on Facebook, Marine Corps Times says.

First Lt. Thomas Gray, a spokesman for I MEF, tells Marine Corps Times that the investigation is being taken “very seriously,” although he declined to go into further details about it.

It’s not clear at this point whether the marines being investigated were making a serious threat or were just making a spectacularly tasteless “joke” in the wake of the massacre at the Pulse nightclub in Orlando. At any rate, it’s good that the military caught word of the photo and is looking into it.