BEIJING (AFP) - Former New Mexico governor Bill Richardson and Google chairman Eric Schmidt arrived Monday in North Korea, where a US citizen is being held awaiting trial, for what the politician called a private trip. “This is a private humanitarian mission, not connected to the US government,” said Richardson, also a former US ambassador to the United Nations, at Beijing’s airport before travelling to the secretive nation. “We’re going to be in Pyongyang, probably for two and a half days. We may go outside the city. We will find out when we arrive,” he said. The North’s official KCNA news agency announced their arrival in Pyongyang as “a US Google delegation headed by former governor of New Mexico Bill Richardson”.