**North Korea's Kim Sends Envoy to China**
North Korean leader Kim Jong Un has sent a senior military official as a special envoy to China, at a time of strained relations between the two traditional allies.
The official Korean Central News Agency said Choe Ryong Hae, the director of the General Political Bureau of the North Korean army, left Pyongyang for China Wednesday along with a government delegation. No details about the purpose of the trip were given.
Chinese foreign ministry spokesperson Hong Lei said Beijing plans to discuss the situation on the Korean peninsula and "issues of common concern" with Choe.
It is believed to be one of the highest-level delegations North Korea has sent to Beijing since Mr. Kim took over leadership of the country following the death of his father in late 2011.
China has long been North Korea's main ally and primary economic lifeline. But there are signs that the new leadership in Beijing is growing impatient with the North.
The brief KCNA report detailing Choe's visit also indicated that North Korea has again reshuffled the top ranks of its military. The report named Kim Kyok Sik, a hawkish general, as the North's new military chief.
**US Homeland Security Secretary to Survey Tornado Response**
U.S. Secretary of Homeland Security Janet Napolitano travels to Oklahoma on Wednesday to assess recovery efforts in the city of Moore, where a devastating tornado killed at least 24 people and injured 240 others.
Napolitano's department includes the Federal Emergency Management Agency, which has teams helping with search and recovery operations, damage assessments and providing federal aid to people affected by Monday's tornado.
The storm destroyed large parts of the central U.S. city with what weather officials say were winds of at least 322 kilometers per hour.
The town's fire chief says emergency workers will not stop searching for survivors and plan to go through the rubble of each building at least three times.
President Barack Obama has declared a major disaster in Oklahoma. He says the people of Moore are not standing alone, as they recover and rebuild.