Islamic State terrorists have threatened to attack the United States with “showers of bullets and explosive vehicles” in a series of online propaganda posters depicting New York’s Police Commissioner James O’Neill as a prisoner in an orange outfit kneeling before a terrorist, among other mocked-up images.

In the poster showing O’Neill, ISIS warns, “We will do more ops in your land, until the final hour and we will burn you with the flames of war which you started in Iraq, Yemen, Libya, Syria, and Afghan. Just you wait. We are waiting too.”

ISIS’s image is titled, “A Message Signed in Blood to the Nation of the Cross.”

The SITE Intelligence Group highlighted the poster after a failed New York City terrorist attack attempted by an ISIS-inspired alleged jihadist from Bangladesh, Akayed Ullah, who entered the United States in 2011 courtesy of chain migration.

Another propaganda image, titled “ISIS in Manhattan,” shows a terrorist with his boot on Trump’s head with the caption, “Wait for us. The vanguards of the conquerors are coming to you with showers of bullets and fires of the explosive vehicles.”

A third poster appears to have surfaced as a response to U.S. President Donald Trump’s decision to recognize Jerusalem as the capital of Israel.

“The recognition of your dog ‘Trump’ [of] Jerusalem as the capital of Israel, will make us recognize explosives as the capital of your country,” states the poster, which features a picture of a bomb and Times Square.

According to SITE, which monitors jihadi activity online, the posters are the latest in a wave of online threats issued against the United States in recent weeks.

A pro-ISIS media outlet reportedly released the images.

On Thursday, SITE reported, “Islamic State (IS) supporters continue to threaten holiday attacks in the West, with one using an image of the Washington National Cathedral in Washington, D.C., to warn New York City.”

U.S. officials from the Office of the Director of National Intelligence (ODNI) and Department of Homeland Security (DHS) have warned that ISIS remains a significant threat despite the losses it has suffered in Iraq and Syria.

Days before the attempted terrorist attack during morning rush hour in New York City on Monday, Robin Taylor, a top intelligence official at the DHS, told a Senate panel:

We assess there is currently an elevated threat of HVE [homegrown violent extremist] lone offender attacks by ISIS sympathizers, which is especially concerning because mobilized lone offenders present law enforcement with limited opportunities to detect and disrupt their plots.

The alleged jihadist behind the failed NYC attack reportedly attended a terror-linked mosque in Brooklyn. Bangladesh authorities believe he was radicalized in New York.

During a recent House panel hearing, DHS Acting Secretary Elaine Duke cautioned that there has already been an “uptick” in ISIS-linked attempts to carry out external operations against the United States stemming from the increased pressure American troops are placing on the jihadist group in Iraq and Syria.