A Utah military installations samples chemical and biological weapons have been locked down "to solve a serious problem, and authorities are working to reopen the base, said Thursday.
U.S. Army Dugway Proving Ground has been blocked from 7:25 ET on Wednesday, a spokesman. All core staff have been working, and it is not necessary to evacuate, "he said.
Since about 6:15 ET on Thursday, "We have staff outside the gate Dugway ... and are preparing to begin a human house soon," said Paula Thomas, a spokesman for a test.
Dugway Commander Col. William E. King IV said earlier that authorities were "working as quickly and as fully as possible to solve a serious problem in the test area, but gave no further details.
"As you know, such actions (locking our ports) are not taken lightly. Nobody is in immediate danger, but these actions are necessary."
test to cover 798 214 hectares and is located in the Great Salt Lake about 85 miles southwest of Salt Lake City Desert.
"Tester to determine the reliability and survivability of all types of military equipment for chemical or biological environment," according to Dugway.