Immigration and Customs Enforcement came under siege from brazen cowards who fired shots at the agency’s offices in San Antonio on Tuesday, at least the fourth attack on ICE facilities in the last two months.

FBI Special Agent in Charge Chris Combs told News 4 multiple shots were fired into two floors of ICE offices around 3 a.m. Tuesday at two separate facilities. The buildings include several other businesses, but Combs said only ICE offices were targeted with gunfire that shattered windows and injured one person, though he didn’t elaborate on the details.

“I don’t think there’s a question that they knew which floors the ICE offices were on,” Combs said. “All of the shots that we have found are on the floors where ICE had offices.

“This is no question a very targeted attack,” he said. “It’s not a secret facility, you can go online, it’s out there. So they did some research, they knew what floors ICE was on, they knew what buildings they were and they hit those.”

The shooting marks at least the fourth time anti-ICE lunatics have targeted the federal agency tasked with deporting illegal immigrants since mid-July, a trend fueled by far left political attacks.

Combs condemned the “cowardly, brazen, violent acts” as police continue to investigate.

“An attempt to attack federal employees is a federal crime with serious consequences,” he said. “The FBI will relentlessly pursue every lead in this case to find the individuals who are responsible.”

Investigators believe someone fired at the buildings from across a highway, and at least one shot penetrated the glass. A man was initially arrested in connection to the crime, but was later released when he was cleared, News 4 reports.

“They have a 24/7 command center in there so there were people in the building,” a former senior ICE official told the Washington Examiner.

The San Antonio shooting follows the aggressive protest at ICE’s national headquarters in Washington, D.C. last month, when “activists” sealed all entrances and exits to the building and chanted as an angry mob at the employees locked inside.

In July, a deranged anti-ICE liberal activist arrived at the Northwest Detention Center in Tacoma, Washington toting a rifle and several Molotov cocktails, which he hurled at buildings and cars. Police reportedly shot him on site as he attempted to light a large propane tank on fire, according to KOMO.

Two days before that, anti-ICE activists ripped down the American flag and two others outside the ICE facility in Aurora, Colorado, then hoisted the Mexican flag instead.

ICE San Antonio Field Office Director Daniel Bible blamed the shooting in his city and other violent stunts like it on heated political rhetoric from the left.

“This attack at the U.S. Immigration and Customs Enforcement’s Enforcement and Removal Operations Field Office in San Antonio is completely without justification,” Bible said. “Political rhetoric and misinformation that various politicians, media outlets and activist groups recklessly disseminate to the American people regarding the ICE mission only serve to further encourage these violent acts.

“ICE officers put their lives on the line each and every day to keep our communities safe,” he said. “This disturbing public discourse shrouds our critical law enforcement function and unnecessarily puts our officers’ safety at risk.”

Combs echoed his colleague’s sentiments.

“We can not allow political discourse to lead us to the point of violence, where federal employees, innocent people doing their jobs are put in harms way,” he said.

The attacks follow months of demonizing attacks from socialist and other far-left politicians, which actively campaign on an agenda to abolish ICE.

Congresswoman Alexandria Ocasio-Cortez and three other socialists freshmen congresswomen known as “The Squad” have compared ICE facilities to concentration camps used by Nazis to kill Jews in World War II, and regularly advise their constituents on how to avoid agents.

Those lawmakers, and other Democrats running to replace Trump in 2020, allege ICE enforces racist policies that target innocent immigrants, though none acknowledge their own inaction to fix a broken system Congress created.