* US new jobless claims unexpectedly jump to 8-month high
* Stocks, oil add to losses after US data
* Treasuries, yen rise as investors seek safe havens
(Updates with reaction to U.S. data)
By Walter Brandimarte
NEW YORK, May 5 (Reuters) - World stocks and crude oil prices fell on Thursday after a report showed U.S. jobless claims unexpectedly jumped to an eight-month high last week, fueling demand for safe-haven assets.
U.S. crude oil prices
Wall Street was poised to open lower, with S&P 500 futures
Among the safe-havens benefited by the data, 10-year U.S.
Treasury notes
The euro fell against the dollar after European Central Bank President Jean-Claude Trichet, speaking at a monthly news conference, was less hawkish than some had expected on future rate hikes.
The euro fell to a session low of $1.4708 EUR= from around $1.4815 after Trichet mentioned upside risks on prices but did not use the phrase 'strong vigilance,' which traders said suggests the ECB won't hike rates again in June. (Additional reporting by Steven C. Johnson and Angela Moon;)