Fire marshals confiscated a massive trove of fireworks and arrested the man who attempted to drive through the Holland Tunnel with them.

Officials say that Stephen A. Chapin, 38, was arrested Friday after he was caught trying to bring the Pennsylvania-bought explosives into Manhattan through the Holland Tunnel. The FDNY alleges that Chapin purchased rocket and mortar-style fireworks out of state, then loaded them into his Cadillac Escalade and covered them beneath blankets and plastic before driving back from Pennsylvania. All told, Chapin's contraband stash had an estimated value of $5,000.

Possessing and exploding fireworks in New York City is a crime, and each year the Fire Department activates its Fireworks Enforcement Unit, which works across multiple states to surveil and stop people attempting to bring illegal explosives into New York. The Department claims that in recent years the Enforcement Unit has made over 200 fireworks-related arrests.

Also on Friday, a 21-year-old Queens man was arrested for selling roman candles, multi-shot mortars, and other illegal fireworks in plain view. Last week, a New Rochelle man was picked up in Massachusetts for driving without a license and carrying 86 different kinds of illegal fireworks in his car.