Crash involving bus, gravel truck prompts Sig-alert on NB I-880 in Milpitas

MILPITAS, Calif. (KGO) -- A Sig-alert is in effect after a crash occurred involving a car, gravel truck and bus on northbound I-880 near Dixon Landing Road in Milpitas this morning. At this time, one lane is closed.

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Lux Bus America confirmed it was their tour bus, and could not say how many people were on board.

No injuries have been reported.