North Korea test-fired a ballistic missile today in apparent defiance of a us push for tougher international sanctions to curb the asian country’s nuclear threat.

South Korean news agency Yonhap reported that North Korea fired an unidentified missile from a site in the vicinity of Bukchang in Pyeongannam-do, and said that the missile “is estimated to have failed.” a U.S. Defense official confirmed North Korea had fired a missile.

The launch comes with tensions high on the Korean Peninsula, with US President Donald Trump warning of the risk of a “Major Conflict.”

It came just hours after U.S. Secretary of State Rex Tillerson addressed the UN Security Council for the first time, called for a global campaign of pressure on Pyongyang to halt its nuclear and ballistic missile programs.

He warned failing to act now on the most pressing security issue in the world may bring catastrophic consequences. He repeated Washington’s threat that U.S. Military options were “On The Table.”