Discreet Professional Protection
An explosion has struck a public health college in Nigeria’s second city of Kano, in the north, killing at least eight people, police say.
At least 20 others were wounded in the blast at the Kano School of Hygiene.
The city has been targeted in the past by the radical Islamist group Boko Haram, which aims to create an Islamic state in northern Nigeria.
Three states to the east of Kano are under a government-imposed emergency after years of militant attacks.
The next phase of the hunt for missing Malaysian jet MH370 will move hundreds of miles south, officials have said.
The search will focus on an area 1,800km (1,100 miles) off the city of Perth, Australian Transport Safety Bureau (ATSB) chief Martin Dolan said.
Nearby areas were previously surveyed from the air, but the undersea hunt was directed north after pings were heard.
The jet vanished en route from Kuala Lumpur to Beijing on 8 March with 239 passengers on board.
Experts had hoped that the pings detected shortly after the plane vanished were from its flight-data recorders.
US President Barack Obama has urged his Russian counterpart Vladimir Putin to stop the flow of weapons into Ukraine and halt support for separatists.
The White House said that in the phone call Mr Obama warned of further sanctions if Moscow failed to act.
The Kremlin says Mr Putin urged direct talks between Kiev and the rebels in the east. Russia denies arming them.
The separatists have said they will observe a truce initiated by Ukrainian President Petro Poroshenko.
Complaints originating from social media make up «at least half» of calls passed on to front-line officers, a senior officer has told the BBC.
Chief Constable Alex Marshall, head of the College of Policing, said the number of crimes arising from social media represented «a real problem».
He said it was a particular problem for officers who deal with low-level crimes.
About 6,000 officers were being trained to deal with online offences, he said.
He said the police and public were still trying to understand when online insults became a crime.
Medical files purporting to relate to F1 legend Michael Schumacher are being offered for sale, his management team has warned.
Manager Sabine Kehm said it was unclear whether the documents were genuine.
But she said they were «clearly stolen» and warned that criminal charges would be pressed if such «confidential files» were bought or published.
Schumacher, 45, was placed in a coma after a skiing accident in December but has now left hospital.