JUNEAU, Alaska (AP) — President Joe Biden on Wednesday signaled plans to place a temporary moratorium on oil and gas lease activities in Alaska's Arctic National Wildlife Refuge after the Trump administration issued leases in a remote, rugged area considered sacred by the Indigenous Gwich'in.

The plans, along with other proposed executive actions, were announced on a fact sheet by the new administration on Biden's inauguration day.

Issuing leases had been a priority of the Trump administration following a 2017 law calling for lease sales, said Lesli Ellis-Wouters, a spokesperson for the U.S. Bureau of Land Management in Alaska.

The agency held the first lease sale for the refuge's coastal plain on Jan. 6. Eight days later, Ellis-Wouters said, it signed leases for nine tracts totaling nearly 685 square miles (1,770 square kilometers). However, the issuance of the leases was not announced publicly until Tuesday, President Donald Trump's last full day in office.

Ellis-Wouters said in an email Wednesday morning that the agency had not yet received official guidance on any presidential orders.

E. Colleen Bryan, a spokesperson for the Alaska Industrial Development and Export Authority, said the state corporation, which was issued seven leases and was the main bidder in the lease sale, "can't speculate what may happen with the new administration."

Biden has opposed drilling in the region and the new administration announced plans for an executive order that would temporarily halt lease activities there. Drilling opponents hope it is a step toward providing permanent protections, which Biden called for during the presidential campaign. Details of his plans weren't immediately available.

The fight to open the coastal plain to drilling goes back decades, with the state's Republican congressional delegation hailing the issuance of leases as "significant and meaningful for Alaska's future."

Alaska U.S. Sen. Dan Sullivan said in a statement that Americans did not give Biden "a mandate to kill good-paying jobs and curry favor with coastal elites."

Sullivan added that he "will do everything in my power ... to fight back against these job-killing orders and regulatory reviews."

Alaska Gov. Mike Dunleavy, a Republican, said the state "does responsible oil and gas development in the Arctic better than anyone, and yet our economic future is at risk should this line of attack on our sovereignty and well-being continue."

Oil has long been the economic lifeblood of Alaska, and drilling supporters have viewed development as a way to boost oil production that is a fraction of what it was in the late 1980s, and generate revenue and create or sustain jobs.

Drilling critics have said the area off the Beaufort Sea provides habitat for wildlife including caribou, polar bears, wolves and birds — and should be off limits to drilling. The Gwich'in have raised concerns about impacts on a caribou herd on which they have relied for subsistence.

"It is so important that our young people see that we are heard, and that the President acknowledges our voices, our human rights and our identity," Bernadette Demientieff, executive director of the Gwich'in Steering Committee, said in a statement. "We know there's so much work ahead, and are thankful that the president will take early action to help protect these lands forever."