No motive is yet known for last week's Pearl Harbor Naval Shipyard shooting tragedy, which appears to have been a random act of violence in which the sailor who fatally shot two civilian workers and himself did not know them and did not plan his actions ahead of time, shipyard commander Capt. Greg Burton said in an "All Hands" message sent out Friday.

Machinist's Mate Auxiliary Fireman Gabriel Antonio Romero of San Antonio, an armed watch-stander on the attack submarine USS Columbia, shot three civilian workers Dec. 4 and then turned a gun on himself while the sub rested in dry dock 2 for a major overhaul, the Navy said.

"The investigation continues, but there is currently no known motive and no information to indicate the sailor knew any of the victims," Burton said.

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A projectile is fired during North Korea's missile tests in this undated picture released by North Korea's Central News Agency (KCNA) on November 28, 2019. (KCNA via Reuters)

SEOUL (Reuters) - North Korea said it had successfully conducted another test at a satellite launch site, the latest in a string of developments aimed at "restraining and overpowering the nuclear threat of the U.S.", state news agency KCNA reported on Saturday.

The test was conducted on Friday at the Sohae satellite launch site, KCNA said, citing a spokesman for North Korea's Academy of Defence Science, without specifying what sort of testing occurred.

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Erik Prince arrives for the New York Young Republican Club Gala at The Yale Club of New York City in Manhattan in New York City, New York, U.S., November 7, 2019. (REUTERS/Jeenah Moon)

WASHINGTON (Reuters) - Erik Prince, the controversial private security executive and prominent supporter of U.S. President Donald Trump, made a secret visit to Venezuela last month and met Vice President Delcy Rodriguez, one of socialist leader Nicolas Maduro's closest and most outspoken allies, according to five sources familiar with the matter.

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Soldiers with 2nd Brigade Combat Team, 4th Infantry Division, walk in what could be mistaken for another planet. Kandahar, Afghanistan, Dec. 25, 2011 (Army photo/Sgt. Ruth Pagan)

(Reuters Health) - While army suicides have historically decreased during wartime, that trend appears to have reversed in recent decades, a new study of U.S. records finds.

Researchers poring over nearly 200 years of data found that unlike earlier times when there was a decline in suicide rates among U.S. Army soldiers during and just after wars, the rate has risen significantly since 2004, according to the report in JAMA Network Open.

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Cmdr. Sean Shigeru Kido (Navy photo)

The Navy relieved a decorated explosive ordnance disposal (EOD) officer on Thursday due to a loss of confidence in his ability to command, the Navy announced on Friday.

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Former Secretary of Defense James N. Mattis (DoD photo)

Former Defense Secretary James Mattis, who led a Marine task force to Afghanistan shortly after the Sept. 11, 2001 attacks, said the Washington Post's recent reporting about the U.S. government's pattern of lies about the war over the last two decades is not "revelatory."

Mattis, who was interviewed by the Washington Post's David Ignatius on Friday, also said he does not believe the U.S. government made any efforts to hide the true situation in Afghanistan and he argued the war has not been in vain.

Here are 10 key quotes from Mattis regarding the Washington Post's reporting in the 'Afghanistan Papers.'

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