The United Nations said Friday it had flown 32 tons of emergency aid to Khartoum, Sudan to quickly assist the thousands of refugees fleeing fighting and violence in Ethiopia.

The UN refugee agency, UNHCR said a second shipment is expected to arrive by plane from Dubai on Monday.

More than 43,300 refugees have crossed the border to Sudan so far. The number of refugees could reach 200,000 in the next six months according to humanitarian agencies.

Visiting Khartoum to oversee operations, UNHCR boss Filipo Grandi expressed his solidarity and gratitude to Sudan for opening its borders to refugees.

According to a UNHCR spokesman in Geneva half of them are children.

Friday's flight brought 5,000 blankets, 4,500 solar lamps, 2,900 mosquito nets, 200 tarpaulins, and 200 rolls of plastic.

Monday's flight is expected to carry 1,275 family tents and 10 prefabricated warehouses to accommodate 16,000 people. Two more flights are planned.