World News from the BBC

The White House says President Obama has received 12 stitches in his face after being injured while playing basketball. The statement says Mr Obama was

inadvertently

hit on the lip by an opposing player's elbow. The White House Medical Unit said the number of stitches used was high in order to reduce the size of any scar.

Border police in the US and Mexico have found a drug smugglers' tunnel linking the Mexican city of Tijuana with California. It's just two streets away from where police found a tunnel earlier this month, equipped with a rail system,

ventilation

and lights. Police said it was used for smuggling marijuana into the US. Local media are speculating the new tunnel could be even more sophisticated.

More has emerged about an

impostor

who convinced intelligence officers in Afghanistan he was a senior Taliban negotiator and received thousands of dollars. The man claimed to be the top Taliban commander Mullah Mansour. Our security correspondent Frank Gardner reports.

As embarrassing international

blunder

s go, this one is about as bad as it gets. For months, British, US and Afghan intelligence officers were all under the impression they were handling a top-level Taliban negotiator, a man named as Mullah Mansour, second in rank only to Mullah Omar, the Taliban leader. It's now emerged that the man is an impostor. He has since disappeared after pocketing large sums of money and being flown around the region by the Royal Air Force. Afghan officials say it's all the fault of MI6, Britain's Secret Intelligence Service who handled him. But British government sources say the man was introduced to British agents by the Afghan security service.