DUGWAY PROVING GROUNDS -- Authorities at a remote military installation in Utah's west desert are searching for a medical facility worker who hasn't been heard from since Sunday.
Dugway Proving Grounds spokeswoman Paula Nicholson says Joseph Bushling last spoke to a fellow solider Sunday night. She says the 26-year-old from Arkansas reported he was out of gas and was without his shoes.
Bushling did not give a location and officials aren't sure if he was on or off the 800,000-acre installation about 100 miles west of Salt Lake City.
Dugway is used to test military weapons, including defending troops against biological and chemical attacks.
Ground and military helicopter searches of the base found nothing.
Officials have no reason to believe Bushling is AWOL.
Nicholson says some base operations were initially suspended, but have resumed.