In the wake of the Notre Dame Cathedral fire, cities around the world are surely taking note on how to best preserve and protect local architectural landmarks. In New York, two highly-trafficked churches, St. Patrick’s Cathedral and the Cathedral of St. John the Divine, have already come under closer watch.

Vice News reported that on Wednesday night, New York City Police counterterrorism officers arrested Marc Lamparello, an adjunct lecturer in philosophy at Lehman College, who walked into St. Patrick’s Cathedral with four gallons of gas, several bottles of lighter fluid, and a handful of lighters. While officials are still unsure whether he planned to commit a crime, the 37-year-old suspect was “emotionally disturbed,” police said.

Lamparello has been charged with attempted arson, reckless endangerment, and trespassing as of this afternoon, according to the NYPD News’s Twitter. 

UPDATE: Marc Lamparello, 37, of New Jersey, has been charged with Attempted Arson, Reckless Endagerment and Trespassing. https://t.co/PYuOrqo1zS

— NYPD NEWS (@NYPDnews) April 18, 2019

The neo-Gothic church sits on Fifth Avenue across from Rockefeller Center in Midtown Manhattan. Completed in 1878, it was designed by renowned architect James Renwick, Jr. Today, it’s one of the city’s most iconic places of worship and a National Historic Landmark that sees an influx of over 5 million visitors each year. The cathedral has been added on to and renovated extensively since first opening; MBB Architects most recently completed a $177 million restoration of the building in 2015.

This isn’t the first time St. Patrick’s has been subject to some form of terrorism. In 1914 and 1915, respectively, a small bomb exploded on the northwest corner of the cathedral and a trio of Italian anarchists tried to detonate a bomb inside the church.

While St. Patrick’s Cathedral was only threatened with potential arson this week, a beloved parish uptown actually did get some real heat. The crypt at the historic Cathedral of St. John the Divine, the largest Gothic Revival structure in the world, caught fire on Sunday morning. New York Daily News reported that a small blaze broke out at 10 a.m. and was extinguished by the fire department in under an hour.

Located in Manhattan’s Morningside Heights neighborhood, the late-19th-century piece of architecture was most recently renovated in 2008 after a 2001 fire swept through the north transept of the church, damaging the gift shop and a bit of its famous Aeolian-Skinner pipe organ. In 2017, the building and its historic grounds were designated a New York City Landmark.