At about 9:40 a.m., fire crews were notified that someone brought in items that could pose an explosive threat at Fire Station 11 at 2840 The Villages Parkway.
The items had been brought to the station from a storage unit and were initially reported to be blasting caps and black powder, prompting the evacuation of the fire station and nearby buildings. Others in the area were advised to shelter in place.
Fire Capt. Mike Van Elgort said investigators, including the San Jose police bomb squad, eventually determined they were shotgun caps and powder used to make shotgun shells.
Once authorities eliminated any possible hazards and secured the items, the all-clear was given at about 10:45 a.m., Van Elgort said. No injuries were reported in the incident, he said.