Video from the scene showed a person attempting to stomp out the fire before the device detonated.
Carrboro Police Capt. Chris Atack couldn't say whether the two incidents were connected, but university police called the department to report a vehicle parked near a bank in Carrboro.
UNC Sophomore Davis Propst Dawson said that the person screamed "This is the Revelation!"
The Davie Poplar Tree was planted when the university was founded.
There is a university legend that says if the Davie Popular tree falls, then the university will fall.
Officials said the man was injured, but it's not clear how badly. Police in Carrboro also closed a section of west weaver street after a suspicious package was found.
"That information led us to be concerned", Atack said.
That prompted the bomb squad to check out a auto parked in a public lot in Carrboro out of an abundance of caution. Just before 7 p.m., Carrboro police said that a loud boom heard in the area was the Durham County Sheriff's Office breaching the auto. Agents of the Bureau of Alcohol, Tobacco, Firearms and Explosives are assisting in the case.
The evacuation area in Carrboro.