ROCHESTER, N.Y. (WROC) — Webster police announced on Friday they are investigating incidents linked to tire pressure spikes on Five Mile Line Road.

Webster police said that the spikes were found in the roadway. The spikes are triangular and have four sharp points — with one point sticking straight upward.

Police said the problem started back in July when a man reported a flat tire on his riding lawn mower from one of the spikes. Police responded and thought they had cleaned them all up.

Over the past two weeks, two other reports of spikes have come in, all along Five Mile Line Road between Ridge Road and 104. Police said they’ve had reports of cars with flat tires in the area, but cannot directly connect them to the spikes.

The Webster Police Department is encouraging anyone with information to call 911.