Law enforcement officials in California have been warned about attacks by the “Black Guerrilla Family” gang, which has called for violence against officers on the street and in prisons as part of “Black August.”

The warning to law enforcement was issued on Wednesday, according to I-Team Reporter Dan Noyes via local KGO-TV in the San Francisco Bay area. The report states that a law enforcement source expressed to Noyes a desire to communicate the dangers facing law enforcement. The report on the source’s information read, in part, “In his words, when it hits the fan, you’ll know the reason why.”

ABC 7 also reported:

The Federal Bureau of Prisons, Sacramento Intelligence Unit and the FBI’s National Gang Intelligence Center have issued a bulletin to law enforcement, warning of increased risk for violence during Black August.

“Black August” is the gang’s commemoration of fallen members, according to the local news report. Black August the movie was released in 2007.

The bulletin warning of attacks speaks of a “2-for-1 kill policy” and that the attacks could occur in California, even nationwide, according to the ABC 7 report. An FBI Baltimore office warning was said to detail targeting of officers “parked in alleys or side streets.”

In late December 2014, a tweet from the New York Sergeants Benevolent Association warned of an impending Guerrilla Family attack, citing a confidential informant. “Storm” and “shoot it out” with the 79th and 81st precinct were the alleged calls to gang members.

Just days before, a man rumored to be associated with BGF assassinated two New York City cops, according to the New York Daily News. Law enforcement later indicated Ismaaiyl Brinsley was not associated with the gang, but a post to his Instagram account prior to the killings noted the action as a response to the officer-involved deaths of Michael Brown in Ferguson, Missouri and Eric Garner in New York. The Brown death helped leftists fuel the Black Lives Matter movement.

A “transform and transition” meeting held shortly after the riots in Ferguson showed, via livestream, one organizer quoting and glorifying the Black Panthers.

In June 2013 allegations surfaced that BGF member and Baltimore jail inmate Tavon “Bulldog” White impregnated four guards. The Associated Press reported that White ran a multifaceted smuggling ring that brought drugs and cell phones into the jail using guards as associates of the gang. By that October, seven correctional officers were pleading guilty in the racketeering conspiracy.

Black Panther member and Marxist George Jackson is said to have co-founded the BGF gang, which originated at California’s San Quentin State Prison in the 1960s.

The warning comes just weeks after an assassin killed five and wounded several other police officers in Dallas, Texas near the close of a Black Lives Matter rally.

Follow Michelle Moons on Twitter @MichelleDiana