Hollister police warned residents to avoid the Veterans Memorial Park area due to activity but about 15 minutes later said the area was clear.
It happened before noon Thursday, and police said the investigation into the unknown matter would continue.
The initial announcement read:
Avoid the area of Veterans Memorial Park for a active police emergency. Please keep a the area clear to all traffic. Shelter in place. Updates to follow
For full details, view this message on the web.