TONGANOXIE, Kan. (AP) — Some buffalo are roaming just a little too far for people around Tonganoxie in Leavenworth County.

A herd of buffalo have been kept in a pasture on property east of Tonganoxie along U.S. 24/40 for 10 to 15 years. But recently, some of the animals have periodically been seen outside the pasture.

Last week, that almost led to tragedy. Two of the animals were killed when they were hit by a tractor-trailer. The driver was not hurt.

The Kansas City Star reports that was the latest in a recent string of escapes.

The owners of the 140 acres where the herd is kept doesn’t live on the property. They have tried to fix any breaches in the fences but their efforts, at least lately, have not been working.