Offers of help have been streaming in from abroad in the wake of the massive earthquake and tsunami that wiped whole towns off the map in the northeast.

Day by day, international rescue teams have been arriving in the country. So far, hundreds of rescuers have arrived from South Korea, Singapore, China, the U.S., Germany, Switzerland, Britain, France, Australia, New Zealand, the United Nations, Russia, Taiwan and Mexico.

A 12-member team from Mongolia was set to arrive at Narita International Airport later Tuesday.