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Scott G Winterton, Deseret News
Emergency crews take one of the drivers to an ambulance as they respond to an injury accident at 4700 S. Redwood Road on Thursday, March 16, 2017.

TAYLORSVILLE — Two people were hospitalized in "extremely critical condition" as investigators worked to determine what caused a collision Thursday.

Police were still unsure which vehicle was traveling in which direction and what led to the collision at the intersection of 4700 South and Redwood Road, Unified Police Lt. Brian Lohrke said.

The two drivers — a man in his 70s driving a pickup truck and a woman in her 30s driving a car — crashed just before 11 a.m. Thursday. Their vehicles then struck a utility pole, damaging it.

"(The vehicles) crashed up against that pole. It splintered the pole and now it's unsteady," Lohrke said.

Rocky Mountain Power workers responded to repair the pole. Spokesman Paul Murphy said power to customers was not affected.

Both drivers were taken to Intermountain Medical Center in what Lohrke called "extremely critical condition."

The crash closed southbound Redwood Road and westbound 4700 South as the pole was repaired and police investigated the crash. Lohrke said investigators believed they would have the intersection cleared in time for the afternoon commute.

More information will be reported as it becomes available.