Xinhua world news summary at 1530 GMT, March 28

WASHINGTON -- U.S. economic growth in the fourth quarter of last year was revised up to 2.9 percent as consumer spending grew faster than previously reported, according to data from the Commerce Department released on Wednesday.

It was higher than the 2.5-percent increase the agency had previously reported, indicating that the U.S. economy was running at a healthy pace last year. (US-Economic Growth)

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TEHRAN -- Iran's ambassador to the United Nations on Wednesday denied that his country has supplied missiles to the Yemeni Houthi militants who target Saudi Arabia's inner posts.

Gholamali Khoshrou dismissed the Saudi allegations as "baseless," urging the kingdom to engage in dialogue with the Houthis.

The three-year Saudi war on Yemen is not legitimate, Khoshrou said, adding that the war on Yemen has achieved nothing but massacre, hunger, diseases and destruction of its infrastructure. (Iran-Missile-Yemen Houthi)

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ROME -- Two maintenance workers were killed when a fuel tank exploded in the Tuscan port city of Livorno, rescue services said Wednesday.

"Explosion in a large tank in a deposit in the coastal area," the national fire fighter service tweeted, along with a photo of a blackened cylindrical metal tank leaning over and with twisted metal components. (Italy-Blast) Enditem