According to the AP the Santa Clara County Fire Department was called to Apple's compound at One Inifinte Loop at about 10 p.m. Tuesday night to respond to a three-alarm fire. Smoke and flames were reportedly coming from under an air conditioning unit that burned for about an hour. The fire burned the roof and the second level at one of the six buildings and was contained by 12:30 a.m. this morning. No one was injured but there's believed to be a lot of smoke damage.
Insert your own joke about Apple's batteries here. Post your caption for the photo above in the TalkBack.
Update: According to a piece of raw video posted at CBS 5 the fire was at Vally Green 6 building.
Update 2: MacRumors is reporting that the building housed Apple's Information Systems and Technology department, not research and development as originally reported.