Protests against the swearing-in of the 45th U.S. President were widely expected on Inauguration Day, though reports from Washington D.C. indicate the uprising is becoming increasingly tense.

As of 2 p.m. ET, 95 protesters have reportedly been arrested, and police said in a statement that one group of protesters has been wreaking havoc on the nation’s capital. “The group damaged vehicles, destroyed the property of multiple businesses, and ignited smaller isolated fires while armed with crowbars, hammers, and asps,” the Washington D.C. Metropolitan Police Department said in a statement.

Two police officers were reportedly transported to an area hospital Friday with injuries described by CNN as non-life threatening. A third person, a civilian, was also treated.

Police have reportedly deployed tear gas and pepper spray against the protesters, some of whom have covered their faces in black masks.

Stones thrown, windows smashed at anti-Trump protest. #Inauguration Photos @Zach_Gibson5 pic.twitter.com/eNvMv8VarG

— AFP Photo Department (@AFPphoto) January 20, 2017

A Washington Post reporter was reportedly knocked down by riot police while trying to record the protests.

An estimated 28,000 law enforcement personnel was reported to be in place in D.C. for the inauguration, which was expected to draw 900,000 people. Security costs could exceed $100 million.