A man is in custody after federal authorities foiled an alleged plan to use large-scale fireworks and other explosive devices against police and government officials at riots protesting deportation efforts in California. 

Grzegorz Vandenberg, 48, is facing federal charges for allegedly buying fireworks with the intent to harm law enforcement officers and government officials at the Los Angeles protests, the Department of Justice said in a press release. 

Vandenberg allegedly visited a travel center in New Mexico, where he “requested assistance in selecting fireworks that could be thrown directly at people to cause harm,” according to prosecutors. 

Sheriff’s deputies stand amid tear gas during a “No Kings” demonstration in the one-square-mile area where daily protests have been occurring in response to federal immigration raids June 14, 2025, in Los Angeles. (David McNew/Getty Images)

Vandenberg was charged with transporting explosives in interstate commerce with the knowledge and intent that they would be used to kill, injure or intimidate individuals, according to the DOJ. He is in custody as he awaits trial and faces up to 10 years in federal prison if convicted. 

Fox News Digital was unable to immediately identify an attorney for Vandenberg. 

“Targeting law enforcement with violence is not protest – it’s a crime,” U.S. Attorney Ryan Ellison for the District of New Mexico said. “Anyone who attempts to harm officers or undermine public safety will be held accountable.”