Diridon Station, a major public transit hub in downtown San Jose, was closed early Tuesday due to a bomb threat, according to police.

Police gave the all-clear at about 7:45 a.m., saying no bomb was found. They received the initial report of the bomb threat at about 5:50 a.m., officials said.

A bomb squad responded to the scene at about 6:30 a.m.

A bus bridge was operating between Race and San Antonio stations while the bomb squad conducted a sweep, the VTA said. Buses were not stopping at the Diridon Station.

Caltrain said its northbound trains were originating out of Santa Clara because of the police activity. Caltrain was experiencing delays of about 60 minutes, officials said.

The station also is a stop for Capitol Corridor and Amtrak service.

No further details were immediately available.