WILLIAMSBURG, Va. (WAVY) – An investigation into a detonated improvised explosive device is underway in Williamsburg.

Investigators responded to a parking lot in Colonial Williamsburg, at South Boundary Street and Francis Street, at around 5 p.m. Thursday after receiving a call for a vehicle fire.UPDATE: Man arrested after IED detonates in Colonial Williamsburg, officials say

When units arrived, they learned an explosion was confirmed as a detonation of an improvised explosive device. The device was located outside of a car parked in the lot.FACEBOOK & MOBILE USERS: Click here for photos from the scene

Major Greg Riley with the Williamsburg Police Department said no one was been hurt and there was no damage to any of the vehicles in the parking lot.

Williamsburg Police say that units with Williamsburg Police, Williamsburg Fire, Colonial Williamsburg Public Safety, Newport News Police, Virginia State Police, the AFI and the FBI assisted.UPDATE: Man arrested after IED detonates in Colonial Williamsburg, officials say

Officers believe it was set off intentionally but said later Friday it was an isolated incident.

The section of Francis St. between South Boundary Street and South Henry was closed to vehicle and pedestrian traffic during the investigation.UPDATE: Man arrested after IED detonates in Colonial Williamsburg, officials say

Police sent a message Friday morning to the William & Mary community:

I write this morning about an incident you may see in the news. Last night there was an explosive device discovered off-campus in a Colonial Williamsburg parking lot at Francis and S. Boundary Streets (P5). The report was made to Williamsburg Police around 5 p.m. No injuries have been reported. Though this was not on-campus, know the proximity is close. While the investigation is continuing, there is no indication of any ongoing threat. Williamsburg Police and other agencies are handling the investigation. Francis Street is currently closed between S. Boundary and S. Henry Streets. Detours are in place. William & Mary Police were on-scene last night and we continue to follow this closely but again, see no ongoing threat to campus. – Deb Cheesebro, Associate Vice President for Public Safety and Chief of Police

UPDATE: Man arrested after IED detonates in Colonial Williamsburg, officials say