UPDATE: Gov. Scott Walker has identified the trooper killed Tuesday as Anthony Borostowski of Tomah.
LAKE DELTON, Wis. (AP) -- A Wisconsin State Patrol trooper has died in a car crash while on duty in Sauk County.
Sheriff's officials say the trooper lost control of his patrol squad and rolled over on Interstate 90 near Lake Delton about 4:30 a.m. Tuesday.
Authorities say the trooper died at the scene after the squad hit a tree.
The identity of the trooper has not yet been released.
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