(Bloomberg) Russian President Vladimir Putin accepted North Korean leader Kim Jong Un’s invitation to visit Pyongyang “at a convenient time,” the official Korean Central News agency reported. The pair on Wednesday held their first summit in four years for talks the US believed centered on Pyongyang sending arms to help Moscow attack Ukraine. Kim, travelling by luxury armored train, remains in Russia and may tour military equipment facilities in the coming days. Most Read from BloombergCaesars