Authorities are searching for two men seen holding guns in a viral video as they laugh about killing Chicago police officers who are in a marked police SUV next to their vehicle.

Police said Saturday that investigators have identified the two armed men in the video, which was brought to the department’s attention on Wednesday.

“The safety of our officers is paramount and we take these threats seriously,” the department said in a statement.

The video, which has explicit language, was shared on the Facebook page Chicago Code BLUE and has been viewed more than 1 million times.

In the video, the driver can be seen directing his camera back and forth between the police SUV and two handguns in his lap. Another man in the backseat appears to flash a gun with a laser sight.

The driver says, “We’re gonna kill him,” and “He’s gonna get his ass hurt,” as he references the guns in his lap.

The department sent a notification to all officers regarding the threats, police said.