Xinhua world news summary at 0030 GMT, April 22

SAN FRANCISCO -- One person was killed and five others were injured, including one suffering life-threatening wounds, in an overnight shooting in San Francisco on the U.S. west coast, police said Saturday.

The man, who died in the shooting in the Bayview community late Friday, was a 20-year-old San Francisco resident, local TV reports quoted police as saying. (US-Shooting)

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TRIPOLI -- A terrorist group on Saturday blew up a crude oil pipeline near the capital Tripoli, the Libyan petroleum installations guards said.

"An explosion and fire broke out as a result of terrorist act in one of the valves on the 24 inch crude oil pipeline northwest of the town of Mrada, some 500km east of Tripoli," the petroleum installations guards said in a statement. (Libya-Crude Oil Pipeline-Terrorist)

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SANTIAGO -- An explosion on Saturday at a medical center in Concepcion, south of capital Santiago, killed at least three people and left around 50 wounded.

The local mayor, Alvaro Ortiz, told the press that the explosion was caused by a gas leak inside the hospital. (Chile-Gas Explosion)

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ISTANBUL -- Turkish President Recep Tayyip Erdogan said Saturday that Turkey may extend the state of emergency for the 10th time for the peace of the country when necessary.

"We will continue extending it for the peace of our country, for the eighth time, for the ninth time or for the 10th time, if necessary," the president said at a meeting of the Foreign Economic Relations Board in Istanbul. (Turkey-State of Emergency) Enditem