It was not immediately clear how the protest was.
Han "declared the principled stand of the. government to find out all of the terrorist maniacs and mercilessly wipe them out", the North's KCNA news agency said in a report on the briefing.
"As the U.S. House of Representatives enacts more and more of these reckless hostile laws, the DPRK's efforts to strengthen nuclear deterrents will gather greater pace, beyond anyone's imagination", the committee said, referring to North Korea by the initials of its official name, the Democratic People's Republic of Korea. Pyongyang sent letters to the United States in 1984 calling for the opening of three-way talks between Pyongyang, Seoul and Washington.
Tension has escalated on the Korean Peninsula over the few past months over Washington's threat to stage military attacks against Pyongyang in response to its nuclear and missile programmes.
Last month, the state-run newspaper Rodong Sinmun claimed US-Australian military exercises in northern Australia were preparation for nuclear war against North Korea and threatened Darwin with a potential retaliatory strike. This year's wargames were the biggest ever, and reportedly included training for precision strikes and assaults meant to take out Kim Jong Un and his top lieutenants.
Last week's KCNA report claimed that members of the Central Intelligence Agency and NIS worked with a North Korean citizen in a plot to "commit bomb terrorism targeting the supreme leadership", and that the plot was "recently uncovered and smashed".
Fight breaks out aboard airplane in Burbank
One passenger was arrested, and another had minor injuries but remained on the plane as it continued to Oakland, it said. It seems like airlines these days can't escape the struggle , and now you can include Southwest Airlines to the mix.
"According to our law, the Central Public Prosecutor's Office of the DPRK will use all available methods to start to work to demand the handover of the criminals involved, so as to punish the organizers, conspirators and followers of this awful state-sponsored terrorism", he said.
At the same time, however, a senior North Korean Foreign Ministry official reportedly flew to Oslo, Norway, to meet with former US diplomats and scholars in what is known as "track 2" talks on bilateral issues.
In the letter to 192 United Nations members and two observer states - dated Thursday - North Korea urged them to "reconsider any of their implementation activities until the legality of those "sanctions resolutions" are to be clarified".
For its part, South Korea has admitted to having plans in place to kill Kim.
The move is part of the Trump administration's new North Korea strategy of "maximum pressure and engagement".
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