(Reuters) - Veteran Frenchman Gilles Simon has said he is taking an indefinite break from the ATP tour out of concern for his mental health.

MOSCOW (Reuters) - Members of Russia's opposition plan to commemorate the sixth anniversary of opposition politician Boris Nemtsov's murder in central Moscow on Saturday amid a clampdown on protests over the jailing of Kremlin critic Alexei Navalny.

MOSCOW, Feb 27 (Reuters) - Members of Russia's opposition plan to commemorate the sixth anniversary of opposition politician Boris Nemtsov's murder in central Moscow on Saturday amid a clampdown on protests over the jailing of Kremlin critic Alexei Navalny.

SEOUL (Reuters) - South Korean has begun a review of Johnson & Johnson's coronavirus vaccine after the U.S. pharmaceutical firm submitted an application for approval, the government said on Saturday.

SEOUL (Reuters) - South Korea said 18,489 people received their first doses of AstraZeneca PLC's vaccine by midnight on Friday as it launched an ambitious COVID-19 inoculation campaign, and will begin using Pfizer/BioNTech vaccines on Saturday.

GENEVA (Reuters) - United Nations human rights investigators will issue their findings on the case of Kremlin critic Alexei Navalny on Monday, a U.N. statement said on Friday.

Feb 26 (Reuters) - U.S. President Joe Biden said on Friday he told Saudi King Salman he would "hold them accountable for human rights abuses" and the United States would be announcing significant changes in the bilateral relationship on Friday and Monday.

(Reuters) - U.S. regulators on Friday said they would work quickly to authorize Johnson & Johnson's COVID-19 vaccine for emergency use after a panel of outside advisers backed the one-shot immunization.

(Reuters) - British finance minister Rishi Sunak will use the budget next week to level with the public over the "enormous strains" in the country's finances, warning that a bill will have to be paid after further coronavirus support, according to an interview with the Financial Times.