U.N. secretary-general 'deeply concerned' North Korea said it could resume weapons tests

UNITED NATIONS/WASHINGTON (Reuters) - U.N. Secretary-General Antonio Guterres is "deeply concerned" that North Korea has indicated it could resume nuclear and missile tests, a U.N. spokesman said on Wednesday.North Korean leader Kim Jong Un said this week that there were no longer grounds for Pyongyang to be bound by a self-declared moratorium on intercontinental ballistic missile and nuclear bomb testing and that a "new strategic weapon" would be introduced in the near future."Diplomatic engage