Three people were killed Saturday night in Anne Arundel County when their SUV left a roadway and crashed, the county police said.

       The vehicle was traveling faster than the speed limit on Route 100 near Route 10 in the Pasadena area when it went off the road and into a culvert about 10:30 p.m., according to police. It began to turn over, struck a large tree and came to rest with the uprooted tree on top of the passenger compartment, police said.

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       All three occupants of the vehicle died at the scene, police said.

       Police said the identities of the victims were being withheld until relatives could be notified.

       Authorities cited “excessive speed” as a cause of the crash and of its severity.