Police said they responded at 7:25 a.m. to the security breach, took the suspect into custody and determined that his claim about an explosive was unfounded.
He appeared to be having a mental health crisis and would receive services, police said on social media. The suspect will be booked into jail on suspicion of several charges.
Police didn't release information about where the suspect was detained, or how he gained access to the area. More details would be released later in the day, a spokesperson said.
Some delays occurred at the airport during the incident, but police said operations have since returned to normal and there was no ongoing public safety threat.
This morning SJC and Patrol Officers responded to a security breach in a sterile area of the airport. A despondent male drove his vehicle onto the south side of the airport.— San José Police Media Relations (@SJPD_PIO) September 19, 2021
A swift response by our units contained the suspect and he was taken into custody. pic.twitter.com/pMQZuxF5S8