South Korea's Acting President and Prime Minister Hwang Kyo-ahn on Tuesday voiced hope for enhanced policy coordination with the new US government, amid concerns about possible shifts in the bilateral alliance.

Alarmed by a series of campaign remarks by US President Donald Trump that were skeptical of military alliances and trade deals with American allies and partners, Seoul has been trying to maintain close ties with Washington, its top security ally.

"I hope that the inauguration of US President Donald Trump and the new government will serve as an opportunity for the two countries to strengthen policy coordination in all areas such as the economy, diplomacy, security and military, and develop a mutually beneficial (relationship)," Hwang said.

The acting president also touted the bilateral alliance as being "forged in blood" during the 1950-53 Korean War, sharing common values and playing a key role in promoting peace and prosperity on the Korean Peninsula and in Northeast Asia.