Xinhua world news summary at 0030 GMT, April 7

At least 20 passengers were killed when their commuter minibus they were traveling in was hit by a landmine in Lower Shabelle region of southern Somalia on Thursday evening, officials said.

Deputy Governor of Lower Shabelle region for Security Affairs Ali Nure Mohamed told reporters that Al-Shabaab militants planted the landmine on the ground to blow up African Union Mission in Somalia (AMISOM) vehicles using the road. (Somalia-Blast)

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PARIS -- An American tourist was stabbed to death by a homeless man in Paris eastern suburb on Thursday, according to local reports.

A 52-year-old American woman was killed in Montreuil after a homeless stabbed her in her back while she was taking photos of graffiti on walls in the area, local broadcaster Europe1 reported. (France-American Tourist-Killing)

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PARIS -- An ultra-light helicopter crashed on Thursday afternoon when it was trying to land at the southeastern French resort of Megeve, killed two people, local media reported.

The helicopter crashed in the landing phase in Megeve, shortly before 5 p.m. local time, resulting in the death of two occupants, French newspaper Le Figaro reported. (France-Helicopter-Crash)

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KHARTOUM -- Sudanese authorities on Thursday announced that 51 civilians have been killed and 28 others injured in tribal clashes in Kordofan region, declaring a one-month state of emergency in the area.

Violent tribal clashes broke out last Sunday between Hamar and Kababish tribes in Sudan's Kordofan region. (Sudan-Tribal Clashes) Endi