Poverty should be regarded as a major risk factor for premature death, scientists have concluded after analysing data on 1.7 million people.

Yasser Arafat’s mysterious 2004 death has turned into a whodunnit after Swiss scientists who examined his remains said the former Palestinian leader was probably poisoned with radioactive polonium.

Palestinian leader Yasser Arafat was poisoned to death in 2004 with radioactive polonium, his widow Suha said yesterday after receiving the results of Swiss forensic tests on her husband’s corpse.

A tourist bus that slammed into a concrete wall in a Swiss Alps tunnel, killing 28 people, was not speeding, Swiss police have said.