Japanese PM Abe says North Korean missile launch a grave threat to Japan

Japan's Prime Minister Shinzo Abe speaks during a news conference at a hotel in London, Britain April 29, 2017. REUTERS/Peter Nicholls

LONDON (Reuters) - North Korea's decision to test-fire a ballistic missile represents a grave threat to Japan, Prime Minister Shinzo Abe said in London on Saturday, calling on the United States and China to keep up pressure on Pyongyang.

North Korea test-fired a missile shortly after U.S. Secretary of State Rex Tillerson warned that failure to curb Pyongyang's nuclear and ballistic missile programmes could lead to "catastrophic consequences".