Nepal was struck another blow when a magnitude 6.7 aftershock hit the Kathmandu area on Sunday, following a major earthquake on Saturday that killed at least 2,000 people and destroyed infrastructure. (For more on Saturday's earthquake, check out HNGN's previous coverage.)

The aftershock came as rescuers continued their efforts to look for survivors from Saturday's earthquake, according to USA Today. Earlier, Reuters reported that the Nepalese were digging with their bare hands and using pickaxes because bulldozers couldn't fit through the streets.

Saturday's earthquake is the worst to hit Nepal in more than 80 years, according to USA Today. In Kathmandu, at least 721 people have died; 5,000 injuries have been reported across the country and 17 died in the earthquake-triggered avalanche on Mount Everest. Laxmi Dhakal, an official from Nepal's Home Ministry, expects those numbers to climb.

"There were at least three big quakes at night and early morning. How can we feel safe? This is never-ending and everyone is scared and worried," said Kathmandu resident Sundar Sah, according to USA Today. "I hardly got much sleep. I was waking up every few hours and glad that I was alive."

The first to provide aid is Nepal's neighbor, India, who gave money, 43 tons of relief materials (like tents and food), 200 rescue workers and equipment.

According to USA Today, the U.S. Mission in Nepal released an initial $1 million for immediate assistance. Australia pledged $5 million in aid. Pakistan, China, France and Britain also pledged their support.

Most of Nepal is without electricity or water. The Kathmandu airport opened briefly, but was closed down again due to the powerful aftershock.