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North Korea says its leader, Kim Jong-un, has overseen the test of what it describes as a "new type of tactical guided weapon with a powerful warhead". The state news agency quoted Mr Kim as saying the weapon had weighty significance in increasing North Korea's military power.

The former president of Peru, Alan Garcia, has died after shooting himself as police arrived at his home to arrest him over corruption allegations. Peru's interior minister said Mr Garcia had told police he was going to call his lawyer, but a few minutes later there was a gunshot from inside the house.

US scientists have partially revived pig brains four hours after the animals were slaughtered. The findings could fuel debate about the barrier between life and death, and provide a new way of researching diseases like Alzheimer's.