The U.S. remains at the ready to help Korea in this very difficult time.
The Pentagon said Monday that the Navy salvage ship USS Safeguard is now sailing to the waters of Korea in case Seoul asks for help with salvage operations, once they begin.
The U.S. National Transportation Safety Board has also pledged to help investigators determine what caused the ferry to sink if requested.
The U.S. Navy ship USS Bonhomme Richard, which was conducting routine patrols in Korean waters last week, is already on the disaster site along with its helicopters.
President Barack Obama, who is scheduled to arrive in Seoul for a two-day visit later this week, has pledged full support in the ongoing search-and-rescue operations.
The presidential advisor Ben Rhodes said this week during a press briefing that the Sewol-ho ferry disaster will take priority during Obama's trip to Seoul.
In addition to the Sewol-ho disaster, President Obama and President Park Geun-hye are also expected to discuss North Korea's nuclear program.
Rhodes said the door to dialogue remains open for Pyongyang so long as the regime is ready and willing to denuclearize.
Connie Kim, Arirang News.