A team of US experts arrived in North Korea's capital Thursday to start disabling the country's main nuclear complex, reports said. The team is expected to begin work later this week to disable a reactor that produces plutonium for bombs, along with other facilities at the Yongbyon nuclear complex. The nuclear experts arrived in Pyongyang on Thursday afternoon, broadcaster APTN said in a report from the North Korean capital. "It will be a combined effort, with North Korean help and our experts supervising and coordinating," team leader Sung Kim, director of the U.S. State Department's Office of Korea Affairs, told reporters before leaving Beijing. "Our main focus is to get there and start the process," he said.