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A teenager was killed and four others injured in a single-vehicle rollover crash south of Rock Springs early Sunday morning, the Wyoming Highway Patrol says.

According to a fatal crash report, the crash happened around 12:30 a.m. on July 3 and went unreported until 10 a.m. on July 12.

Officials are looking at all the information to determine if there a commonality, but multiple factors make it difficult to address one area of concern.