CBS SF

The Google I/O, the company's annual developer conference, was disrupted Thursday afternoon by a fire that sent three people to the hospital, authorities told the local CBS TV station.

One of the victims was previously characterized as having life-threatening injuries, but a source in touch with the victims said all three suffered minor injuries. The three fire victims were event staff, Google said in a statement.

"We're thankful to the fire department for putting it out and ensuring everyone's safety," a Google spokesperson said in a statement. "No attendees were hurt but regretfully, three event staff were injured and we're making sure they receive the proper treatment."

The fire reportedly broke out shortly before 4 p.m. PT at a picnic table area at the Shoreline Amphitheatre.

Fire investigators are on the scene trying to determine the cause of the fire, KPIX reported.

Google said the event will continue as planned for the rest of Thursday evening and Friday.

Updated at 8:35 p.m. PT to update victims' conditions.

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