UPDATE Oct. 18, 4:08 p.m.
Mike Pence visited the North Carolina Republican office that was vandalized over the weekend and called the act "political terrorism."
"I wanted to come by to call attention to this cowardly attack on our supporters in North Carolina and to no less extent and attack on the American political system," Pence told reporters.
The Indiana governor said he made the unannounced stop to bring attention to the incident.
UPDATE 7:46 p.m.
Donald Trump also responded to the attack saying, "Animals representing Hillary Clinton and Dems in North Carolina just firebombed our office in Orange County because we are winning."
Trump added, "Now we have to win."
UPDATE 5:27 p.m.
Hillary Clinton responded to reports of the attack at the North Carolina GOP headquarters calling it "horrific and unacceptable."
The North Carolina GOP responded, tweeting, "Thank you for your thoughts & prayers, Sec. Hillary Clinton."
Police are investigating after an apparent firebomb was thrown into the front window of a Republican Party headquarters in Hillsborough, North Carolina, Saturday night, according to the Charlotte Observer.
One state GOP official told the Charlotte Observer this was an act of "political terrorism."
The bottle of flammable liquid burned furniture and charred some political signs before going out, police told CBS affiliate WNCN.
"The office itself is a total loss," Dallas Woodhouse, executive director of state GOP, told the Charlotte Observer.
Police said the vandals also spray painted the words, "Nazi Republicans get out of town or else" on the side of an adjacent building.
"Whether you are Republican, Democrat, or Independent, all Americans should be outraged by this hate-filled and violent attack against our democracy," Woodhouse added in a statement to CBS affiliate WNCN.
Hillsborough Mayor Tom Stevens issued a statement saying the attack goes "far beyond vandalizing property" and threatens the community's safety as a whole.
Luckily, no one was hurt in the incident, but the North Carolina Republican Party released a statement saying it will be increasing security at events and offices.