BEIJING, Sep. 1 (Xinhuanet) -- Apple lost another iPhone prototype at a Bay Area bar, according to media reports Thursday.

It is reported that an Apple employee lost a prototype iPhone at San Francisco bar Cava 22 in late July, which is a tequila bar in the mission district.

A joint investigation by Apple and San Francisco police searched a local house but could not find it, the reports added.

It seems that Apple employees learned nothing from last year’s lost iPhone scandal. A prototype iPhone 4 was lost in a Redwood City bar last year.

Apple has denied any knowledge of the incident, and San Francisco police stated that Apple did not file a police report for the lost merchandise.

If the reports are true, it would be a big blow to Apple’s ego since the company takes pride in its secretive nature.