Driver in head-on crash arrested for DUI

Gerd Dunker, 48, of Sonoma, was traveling west toward Petaluma east of Adobe Road when he made an unsafe turning movement and collided head-on with an eastbound 18-wheel tractor-trailer around 9:45 a.m., the CHP said.

Dunker and his passenger, Angela Franck, 42, of Sonoma, suffered severe injuries and were taken to Santa Rosa Memorial Hospital.

Both vehicles sustained major front-end damage, CHP Officer Jaret Paulson said.

The collision pushed the Ford into a Jeep Liberty that was traveling behind the Ford, Paulson said.

The Jeep's driver, Yesenia Chavira, 27, of Rohnert Park, was not injured.

The driver of the big-rig, Clemente Garcia, 41, of Quebec, Canada, was also uninjured, CHP Officer A. Paulson said Tuesday morning.

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