Two United Nations experts, including an American, were killed in Congo in March, but a local inquiry has been criticised.
She said she believed the arrest was leader Kim Jong Un "trying to really show his strength to the people of North Korea."
The U.N. deputy secretary-general says she and U.N. Secretary-General Antonio Guterres are concerned over the new administration's attitude toward fighting global warming.
Michael Sharp was abducted and killed in Congo while investigating a deadly insurgency.
President Joseph Kabila is due to step down when the next elections are held.
If Nikki Haley cannot reach agreement with Russia and China, then Russia's Deputy U.N. Ambassador Petr Iliichev said Moscow would call for a rare procedural vote to block the move.
Haley said there's "no love" between the U.S. and Russia.
Secretary of State Rex Tillerson and U.S. Ambassador to the U.N. Nikki Haley said the U.S. was no longer interested in pursuing regime change in Syria.
Haley outlined her agenda for the United Nations, including human rights and peacekeeping reform.
It is impossible to make America first by treating the world last.
North Korea fired the missiles into the sea off Japan's coast in response to the annual U.S.-South Korea military drills, which Pyongyang sees as preparation for war.
Nikki Haley said Washington "will not hesitate to call out Russia" for transgressions.
Haley's comments came after Trump said on Wednesday that he was open to ideas beyond a two-state solution.
At the risk of breaking protocol, Azita Raji urges Haley not to be an apologist for current policy.
The South Carolina governor is the fourth confirmed cabinet member.
"Nowhere has the UN's failure been more consistent and more outrageous than in its bias against our close ally Israel," Republican South Carolina Governor Nikki Haley said.
Trump adds two cabinet nominees right before Thanksgiving.
Warren and others are criticizing Trump for a lack of diversity—both gender and racial—in his Cabinet picks.
Obama and Haley offered a plea for optimism and a quest for common ground.
The South Carolina governor confirmed she was referencing Trump as one of the "angriest voices" during her GOP response.
Haley encouraged Republicans to recognize their contributions to the "erosion of the public trust."
Trump said the address was "really boring, slow, lethargic—very hard to watch!"