MORGAN COUNTY, Colo. (CBS4) – A male driver and his female passenger were killed Sunday near Wiggins when their vehicle collided head-on with a semi.

Highway 34 was closed between Morgan County Roads 3 and 4 for almost five and a half hours because of the crash.

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Monday, the Colorado State Patrol identified the deceased as 43-year-old Anthony Lucero of Denver and 28-year-old Stephanie Maestas of Lakewood.

CSP also confirmed that the vehicle they were driving was reported stolen late last week in Denver. Denver police told CBS4 it was stolen on April 1 on the 4000 block of West Colfax Avenue.

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It is not known at this point if Lucero and Maestas were involved in the theft.

The driver of the semi, a 48-year-old man from Iowa, was uninjured. A passenger in the truck suffered minor injuries.

CSP is still investigating the circumstances of the crash. It occurred at about 10:45 a.m.

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CSP added that this section of Highway 34 is a two-lane road.

Logan Smith