An English-speaking Islamic State fighter. Photo: Screenshot.

The notoriously bloodthirsty terror group ISIS has released a new “kill list” naming over 1,700 targets — specifically members of synagogues and churches — for attack across the US, the International Business Times reported on Wednesday.

The list was released online by ISIS’s cyber hacking arm the United Cyber Caliphate (UCC) and first uncovered by intelligence analyst group SITE. The terror group called on its supporters to carry out lone-wolf terror attacks, and urged: “kill them all,” “slay them.”

According to SITE, the list was first published on July 3 but was then quickly deleted. A new list was uploaded on July 5 with additional links and information. The notice doesn’t explain why specific religious organizations are being singled out by the terror group.

US security officials appear to be taking the most recent target list seriously. As reported by Nashville’s WSMV, the FBI has begun warning residents in the area of their inclusion. 

FBI assistant special agent-in charge Matthew Espenshade told the news station, “When we find information like this, we’re always doing our best to contact the public, let them know, even if we don’t understand why necessarily that information was out there or compromised.”

The use of kill lists by ISIS and its affiliates has evolved into a common terror tactic. According to a report by SITE, “These lists, with targets spanning drone operators to random civilians, appear to have achieved at least part of their presumed intentions: heightened alert by government workers, FBI visits to startled civilians, and significant media attention.”

Over the last year alone, kill lists by pro-ISIS hacking groups have “not only become more abundant, but have also expanded in terms of target selection.”