SYDNEY, Apr 19 (Reuters) Gold rose as much as $4 an ounce to a fresh quarter-century high on Wednesday, driven by tensions in the Middle East that have led to record high oil prices and worries about inflation.
-- Spot gold traded as high as $624.40 an ounce and was fetching $623.15/$623.65 at 0226 GMT.
-- Gold opened in Sydney at $622.70/$623.50 an ounce versus London's last fix by bullion dealers on Tuesday of $614.75.It climbed as $620.30 in late New York.
-- ''We're seeing strong support among buyers across the spectrum,'' a dealer said, noting institutional fund purchases showed no sign of waning.
-- Suicide attacks in Tel Aviv, Iran's nuclear programme, and rising oil prices all teamed to push gold up, dealers said.
-- A weaker U.S. dollar, which hit a seven-month low against the euro , was contributing to investors' interest in gold.
-- Spot silver changed hands at $13.90/13.93 an ounce, down 1 cent on late New York.
-- Spot platinum traded just under a record high at $1,108/$1,113 an ounce.
-- Spot palladium was steady at $361/365 an ounce.
REUTERS CS HS0918