An explosion, from a garbage can, in a southern New Jersey beach community went off on Saturday near a Marine Corps charity race. Authorities are saying that it wasn’t a coincidence — the pipe bomb was meant to disrupt the military event.

This from CNN:

Three pipe-bomb-type devices wired together were found near the boardwalk in Seaside Park. No injuries were reported and a four-block area was evacuated for most of the day, authorities said.

An initial examination showed the devices were rudimentary, with some type of timer, and only one of them detonated, two federal law enforcement officials told CNN.

Al Della Fave, a spokesman for the Ocean County prosecutor’s office, said he believes the blast was meant to affect the Seaside Semper Five race.

Officials close to the crime scene say that if the explosion had went off just minutes after, it would’ve injured many participants registering for the race.

Shortly after the bomb went off, the area was locked down and dogs were brought in. Unfortunately, the event was eventually cancelled by organizers and local police.

The FBI Is now leading an investigation to uncover just who is responsible for the planned attack.

They suspect it might be either a person or a group of people with strong anti-military positions.

“It could be somebody that has grievance against the US military, possibly the Marine Corps specifically, and have nothing to do with an overseas-inspired attack like ISIS. So it still could be terrorism without being international, without being al Qaeda or ISIS or another affiliated group,” said CNN senior law enforcement expert Tom Fuentes said.

Stay tuned to the blog for more on this developing story.