SEOUL, May 25 (Reuters) - South Korea convened a National Security Council (NSC) meeting over North Korea's missile launch on Wednesday and "strongly condemned" the North's latest weapons test as a "grave provocation", the presidential office said.

Yoon Suk-yeol, South Korea's new president, presided over the meeting and ordered officials to take agreed steps to strengthen U.S. deterrence, according to his office.

In a separate government statement, South Korea also said it had "strong and effective" responses ready to deal with any North Korea provocations. (Reporting by Soo-hyang Choi; Editing by Tom Hogue)