Arizona officials say they will use shipping containers to close a 1,000-foot gap in the border wall near Yuma.
Officials with Republican Gov. Doug Ducey's office say were acting to stop migrants after repeated, unfulfilled promises from the Biden administration to close the gap.
The announcement came after the Biden administration said late last month it authorized completion of the wall on the border near Yuma.
Federal officials did not immediately comment. The move comes without explicit permission on federal land.
State contractors began moving and stacking 60-foot-long, 9-foot-tall shipping containers early Friday.
Two other 1,000-foot gaps also will be closed off. The containers will be topped with 4 feet of razor wire.