SAN JOSE, Calif. (AP) -Cell phone, Internet and landline service is back in Silicon Valley after one or more vandals apparently severed eight fiber-optic cables.

San Jose police said there was evidence that someone removed a manhole cover and cut four cables early Thursday. The incident wiped out phone and Internet service for thousands in the area.

Hours later, authorities in San Carlos reported that four cables there had also been cut.

AT&T Inc., which owns some of the lines, is offering a $100,000 reward for information leading to an arrest. Late Thursday, it said service had returned to most of the area.

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