Major U.S. cities are on high alert and increasing security measures following President Donald Trump’s airstrikes against Iran’s nuclear facilities Saturday, June 21. Top officials from the FBI and Department of Homeland Security (DHS) held conference calls Sunday, June 22, sharing information about potential threats with some governors and high-level law enforcement leaders, ABC News reports.
The purpose of the calls was to discuss the national security situation after the recent strikes in Iran, and how they might affect an already tense security environment in the U.S.
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Increased security presence in New York City
The New York City Police Department said it was tracking the situation in Iran. “Out of an abundance of caution, we’re deploying additional resources to religious, cultural, and diplomatic sites across NYC and coordinating with our federal partners,” the NYPD posted to X, adding they will “continue to monitor for any potential impact to NYC.”
Vito Fossella, borough president of Staten Island, said in a statement that he spoke with Melissa Eger, the NYPD borough commander, who said police are increasing their presence at sensitive locations on the island.
“While we always need to be vigilant to keep Staten Islanders safe, the current situation requires us to be even more vigilant than normal,” Fossella added in the statement.
New York Gov. Kathy Hochul reaffirmed that her top priority is the safety of all New Yorkers.
“I am receiving intelligence briefings and closely monitoring the evolving situation in Iran alongside federal and local partners,” Hochul posted on X. “The New York State Police are working to protect at-risk sites and fight cyberattacks.”
Los Angeles and Illinois officials monitoring threats
On the West Coast, Los Angeles Mayor Karen Bass said city officials are monitoring any threats to public safety.
“There are no known credible threats at this time and out of an abundance of caution, LAPD is stepping up patrols near places of worship, community gathering spaces and other sensitive sites,” Bass posted to X. “We will remain vigilant in protecting our communities.”
Illinois Gov. JB Pritzker also announced over the weekend that officials will continue monitoring the situation, and he will be receiving briefings.
“At my request, federal authorities, @ILStatePolice, and local law enforcement have kept me updated on any potential physical and cyber threats to the homeland that could affect Illinois,” Pritzker wrote in a post on X. “We will remain vigilant and publicly communicate if there are related incidents or concerns.”
US strike targets Iranian nuclear facilities
“We devastated the Iranian nuclear program,” Defense Secretary Pete Hegseth said. “But it’s worth noting, the operation did not target Iranian troops or the Iranian people.”
Iran vowed retaliation against the United States, and on Monday, June 23, attacked one of its military bases in Qatar. No casualties were reported, and according to a social media post by Trump, Iran gave the U.S. advanced notice of its intent to strike the base.
Prior to that strike, Trump posted, “Any retaliation by Iran against the United States of America will be met with force far greater than what was witnessed.”
DHS issues national terrorism bulletin
The Department of Homeland Security issued a National Terrorism Advisory System bulletin regarding a heightened threat environment, which will expire Sept. 22, 2025.
“It is our duty to keep the nation safe and informed, especially during times of conflict,” DHS Secretary Kristi Noem said in a statement. “The ongoing Israel-Iran conflict brings the possibility of increased threat to the homeland in the form of possible cyberattacks, acts of violence, and antisemitic hate crimes.”
Meanwhile, on Sunday, the U.S. State Department issued several travel and evacuation warnings for Americans abroad, amid the increasing tensions.
contributed to this report.