Former US President Jimmy Carter will begin receiving hospice care, according to a statement from The Carter Center on Saturday.

North Korea launched a presumed long-range ballistic missile Saturday afternoon, South Korea's Joint Chiefs of Staff said, a day after Pyongyang warned of "unprecedented strong responses" if the US and South Korea go ahead with planned military exercises.

US Secretary of State Antony Blinken met with China's top diplomat Wang Yi on Saturday, a State Department spokesperson said.

Dr. Sanjay Gupta breaks down how some people are able to survive for many days under the rubble, and why some international rescue teams adhere to "the rules of fours."