The United States has urged the governments of Southeast Asia region to refrain from pushbacks of new migrant boat arrivals.
US State Department spokesperson Jeff Rathke made the call in a press briefing on Friday.
"We appreciate the steps taken by the governments of Indonesia, Malaysia, and Thailand to assist the migrants. We urge governments in the region to refrain from pushbacks of new boat arrivals," he said.
He also urged the Southeast Asian countries for their continued coordination with the UN High Commissioner for Refugees and the International Organisation for Migration.
The spokesperson expressed concerned about the urgent situation faced by thousands of Rohingya and Bangladeshi migrants at sea in Southeast Asia.
He said the US State Secretary called his Thai counterpart on Thursday night to discuss the possibility of Thailand providing temporary shelter for them.
"Our ambassadors in the region are intensely engaged with governments to encourage a rapid humanitarian response," he added.
Jeff Rathke said: "We urge the countries of the region to work together quickly, first and foremost, to save the lives of migrants now at sea who are in need of an immediate rescue effort."
More than 700 migrants from Myanmar and Bangladesh were brought ashore to the east coast of Aceh on Indonesia's island of Sumatra on Friday, a search and rescue official said.
A boat carrying nearly 600 migrants landed in Indonesia on Sunday. Thousands of migrants are stranded on similar boats in Southeast Asian seas following a Thai crackdown on human trafficking.
Moreover, the governments in the region seek to prevent them from landing.