Massachusetts state police on Monday confirmed that a vehicle struck a group of pedestrians in East Boston, according to NBC Boston.
The Boston Globe reported that at least nine people were injured in the incident, according to a public safety official briefed on the matter.
A law enforcement official briefed on the matter told Circa News that the incident "appears to be accidental," adding that the driver is "cooperating with police."
"There appears to be no nexus to terrorism at this time," they said.
Circa's source added that state police will be taking the lead on the accident and would be issuing an official statement on it soon.
Police spokesman Dave Procopio said that the vehicle hit the victims on Porter Street, which is in the vicinity of Logan Airport.
Procopio added that the vehicle’s driver is 56 years old and is being interviewed by police at the scene.
Another official said that investigators are looking at operator error in the incident, which occurred one day before the July 4 holiday.
The incident reportedly occurred near Porter Street and Tomahawk Drive, near Logan’s taxi pool.
Some Twitter users speculated that the incident was a terrorist attack rather than a mere accident.
State police tweeted that preliminary reports indicate the victims have injuries of “varying severity” after the crash.
Boston Emergency Services tweeted that it had multiple units responding to the incident, while 10 patients are heading to area hospitals.