- Summary- Residents in Japan told to shelter after launch- South Korea, U.S. to extend 'Vigilant Storm' exercises- North Korea fired as many as five other missiles- Pyongyang says extending drills 'irresponsible', 'wrong'TOKYO/SEOUL, Nov 3 (Reuters) - North Korea fired multiple missiles into the sea on Thursday, including a possible failed intercontinental ballistic missile (ICBM), prompting the United States and South Korea to extend air drills that have angered Pyongyang.An initial Japanese government warning that an apparent ICBM had flown over the country triggered alarms for some residents to seek shelter.Tokyo later said the warning about the missile flying over Japan was incorrect.On Thursday, Pak Jong Chon, secretary of the Central Committee of North Korea's ruling Workers' Party, said Washington and Seoul had made a very dangerous decision by extending the drills, and were "shoving" the situation out of control.Japanese Defence Minister Yasukazu Hamada said the government lost track of the ICBM over the Sea of Japan, prompting it to correct its announcement that it had flown over the country."