The Israeli government has denied any role in the death of Yasser Arafat, saying that he was 75-years-old.
"This is more soap opera than science, it is the latest episode in the soap in which Suha opposes Arafat's successors," Israeli Foreign Ministry spokesman Yigal Palmor said.
The investigation amounted to "a highly superficial attempt to determine a cause of death".
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Barack Obama has delighted the crowds at St Andrew's golf course as he teed off his visit to Scotland with a game of golf.
Britain's most senior counter-terrorism officer said "immense" progress had been made in the investigation into the Manchester bombing.
Scotland sees the best of today's weather but temperatures are a good 10C above average for the time of year across much of the UK.