Two Alexandria residents were killed and another man was injured when their SUV barreled off an overpass in the Oxon Hill area of Prince George’s County and crashed to the roadway beneath it, authorities said.

The crash occurred about 2 a.m. Officer Harry Bond, a Prince George’s County police spokesman, said the SUV’s driver lost control as he headed north on the Indian Head Highway overpass to Oxon Hill Road. Police said in a news release the SUV hit a guardrail and light pole before it overturned and came to rest on Oxon Hill Road.

The driver — 45-year-old James Monroe Henderson, of Alexandria — and a passenger — 30-year-old Kiyomi Williams, of Alexandria — were killed. Another passenger in the SUV, Henderson’s nephew, suffered injuries not thought to be life-threatening, police said.

Police said speed was believed to a factor in causing the crash.

Because of incorrect information provided by authorities, this report initially listed one victim’s name incorrectly.

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