The Bloods have vowed to kill more Jersey City cops to avenge the thug the police shot dead this week after he executed a rookie officer, The Post has learned.

The violent street gang has threatened to “kill a Jersey City cop and not stop until the National Guard is called out,” a senior law enforcement source revealed.

Police are even being warned that violent Bloods gang members may be traveling from out of state to target officers in New Jersey, according to an internal New Jersey State Police advisory obtained by The Post.

“New Jersey State Police has received credible information from the Jersey City Police Department about specific threats toward Jersey City police officers and law enforcement,” the advisory read.

“The United Blood Nation may take retaliatory action against police officers.”

The New Jersey State Police advisory cautioned that officers should remain vigilant and be aware of “the potential for Bloods traveling into Jersey City.”

In addition to the New Jersey State Police advisory, a statewide alert has been issued to police officers, a senior law enforcement official said Tuesday.

“It was an officer safety awareness” advisory “telling cops to be careful and to wear their vests and take the threat seriously,” the official said.

Cops throughout New Jersey have been warned to use extra caution due to the threatened retaliation, which follows three police-involved shootings in the city.

The gang threat was made in direct response to the fatal Jersey City police shooting of Lawrence Campbell moments after he ambushed Officer Melvin Santiago in a Walgreens parking lot early Sunday.

Santiago had been responding to an armed robbery at the 24-hour drugstore when Campbell unleashed a barrage of bullets, leaving 13 holes across the patrol car’s windshield.

Santiago, 23, was shot in the head.

His partner dodged the bullets and returned fire, killing Campbell.

It was not clear Tuesday if Campbell, 27, was a member of the Bloods.

The tip about the threat came from a credible source who has provided valuable information about gang activities in the past, authorities said.

The state police and the Jersey City Police Department did not return requests for comment.

Meanwhile, a makeshift memorial to Campbell was dismantled after residents of a Jersey City street became outraged.

The memorial just off Martin Luther King Drive included candles, empty liquor bottles, and T-shirts to lionize the cop-killer.

The shirts bore the phrases “Thug In Peace” and “Live Life My Bro.”

Police reportedly tore down the shrine Monday.

“I had it taken down last night,” said Jersey City Mayor Steve Fulop, according to NJ.com.

“I am not going to let a few residents pretend like they express the views of a great city like Jersey City.”

Additional reporting by Frank Rosario and Joe Tacopino