Police in Michigan are investigating the shooting of a driver that occurred along Interstate 96 Saturday, the latest in a string of shootings in southeastern Michigan, according to local reports.

Livingston County Sheriff Bob Bezotte told local station WDIV that the driver who was shot was taken to a hospital for a wound to his buttocks.

Bezotte said another car was also hit by gunfire but the driver wasn’t hurt. Sheriffs closed off parts of the highway to investigate the shooting.

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Earlier this week, a specially formed task force of 70 investigators from local and state police agencies was investigating 22 reported shootings along or near the interstate in Ingham County, Oakland County, Livingston County and Shiawassee County.

Until Saturday's shooting, none of them involved any injuries. The first occurred on Oct. 16.

Ingham County Sheriff Gene Wriggelsworth told reporters that the nature of the shootings makes the investigation a challenging one.

“We’ve got a 100-mile crime scene there, folks,” Wriggelsworth said.

Police said at least seven of the shootings appear to be linked based on bullet fragments or casings discovered at the scene, although investigators couldn’t point to a specific weapon used, Oakland County Sheriff Michael Bouchard told the Associated Press.

Based on reports and at least 20 tips, authorities said the gunman appears to be a man in his 30s. Police released a sketch of the possible suspect, described as a young man with closely cropped hair who was driving a black sedan. 

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