FBI and ATF agents are once again investigating an explosion in Bucks County.

The explosion happened at around 1 p.m. Thursday afternoon when a person cutting grass in Milford Township struck an explosive device, ABC6 reports.

The explosion resulted in a two-foot crater that was about two-and-a-half inches deep. Authorities warned those in the area to not walk on uncut grass in case there are other explosive devices.

There have been dozens of explosions in the same area since they started a few months ago.

No injuries were reported.