Courtesy / San Jose Fire Department

Firefighters in San Jose — already dealing with any number of dangers in the line of duty — have another hazard to be on the lookout for after a crew discovered a booby trap while responding to a call Sunday morning.

The trap was discovered on the east side of Communications Hill in South San Jose near an abandoned homeless encampment when a firefighter stepped through a burlap sack that was covering a 2-foot hole with numerous sharpened wooden spikes set in the bottom, said Sean Kaldor, Vice President of Local 230 Firefighters Union.