Hwang also ordered top policymakers to "preemptively" prepare for potential changes in US policies that could arise after the swearing-in of the Republican, and seek sufficient policy consultations with their US counterparts.

Trump's election last year has triggered concerns about major shifts in bilateral ties. 

The real-estate tycoon had let loose a series of controversial campaign remarks that questioned the economic value of regional alliances and disparaged the South Korea-U.S. free trade pact as a "job-killing" deal. 

The acting president also directed the South Korean military to keep close tabs on the North's military movements and be ready to respond to any type of provocations, noting Pyongyang often engaged in provocative acts during past periods of government change in Washington.

The communist state has recently cranked up its provocative rhetoric, saying it is close to mastering the technology for an intercontinental ballistic missile.

Hwang also urged continued efforts to create jobs and revitalize the economy.  

"The basis for the stabilization of people's livelihoods is, after all, job creation," he said. "I urge all government ministries and agencies, including the labor ministry, to put top priority on addressing job-related issues." (Yonhap)