Xinhua world news summary at 0030 GMT, May 17

A bus station in Damaturu, capital of northern Nigeria's Yobe State, was hit by a bomb attack Saturday, leaving at least 7 killed and 27 injured, hospital officials said.

The attack, carried out by a 10-year old female bomber, occurred as she approached a popular motor park at the heart of the city of Damaturu at about 11:45 a.m. local time. (Nigeria-Bomb)

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ISLAMABAD - At least five people were killed and two others injured in a U.S. drone strike launched in Pakistan 's northwestern tribal region of North Waziristan on Saturday evening, local media reported.

According to local Urdu TV Express News, the U.S. unmanned aircraft fired two missiles at a house in the Wara Mandi area of Shawal valley of North Waziristan, Pakistan's restive tribal region bordering Afghanistan. (Pakistan-Drone strike)

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ANKARA/DAMASCUS -- Turkey's defense chief said on Saturday his country shot down a Syrian helicopter, citing airspace violation near Syrian border.

"A Syrian helicopter was downed after violation of border seven miles for five minutes in Cilvegozu (border crossing)," Turkish Defense Minister Ismet Yilmaz told reporters.

Turkish F-16 fighter jets fired at the Syrian aircraft, which crashed on the territory of Syria near Dursunlu and Emek villages of southern Hatay province of Turkey, local NTV news channel quoted Turkish military sources as saying. (Turkey-Syria-Conflict)

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DAMASCUS -- The Islamic State (IS) militants on captured on Saturday parts of a northern neighborhood in the ancient city of Palmyra in central Syria, after killing and wounding over 47 government troops, a monitor group reported.

The capture comes after large numbers of IS fighters unleashed the attack against the northern neighborhood in Palmyra in the eastern countryside of the central Homs province, said the Syrian Observatory for Human Rights. (Syria-IS) Endi