Xinhua world news summary at 0830 GMT, March 26

MOSCOW -- At least 53 people were killed in a fire at a shopping mall in the south central Russian city of Kemerovo, Russia's Emergency Situations Ministry said Monday.

The fire, which started Sunday afternoon, has been put out, but rescuers are still struggling to reach the upper floors because the roof of the building collapsed. (Russia-Shopping mall fire-Toll)

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SEOUL -- South Korea has been exempted from the U.S. heavy tariffs on steel imports in a deal to revise their six-year-old free trade agreement (FTA), Seoul's trade minister said Monday.

"(South) Korea became the very first country to wrap up negotiations (to be exempted from the U.S. tariffs on steel imports) and eliminated the uncertainty of local steelmakers about exports to the United States," Trade Minister Kim Hyun-chong told a press briefing. (S.Korea-U.S.-Tariffs)

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WASHINGTON -- Stormy Daniels, a U.S. adult film star who allegedly had a sexual relationship with President Donald Trump, told her story in an interview with a local current affairs program on Sunday.

Daniels, whose legal name is Stephanie Clifford, said that she had sex with Trump in July 2006, which was consensual, and they stayed in touch after that, but did not have sex again. (US-Trump-Affair)

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SAN FRANCISCO -- Facebook CEO Mark Zuckerberg Sunday apologized in full-page ads in several British and U.S. newspapers for a data breach scandal that puts the world's largest social media company under tremendous pressure.

The Facebook ads appeared in British newspapers such as the Observer, the Sunday Times, the Mail on Sunday, Sunday Mirror and Sunday Express, as well as U.S. newspapers the New York Times, Washington Post and Wall Street Journal. (US-Facebook) Enditem