(Refiles to remove extraneous word from headline)By Stella QiuSYDNEY, Sept 11 : Global bond yields spiked to new highs and sharemarkets slumped on Friday as soaring oil prices inflamed inflation risks, sending investors scrambling to price in more policy tightening from central banks across the globe.

(Refiles to remove extraneous word from headline)By Stella QiuSYDNEY, Sept 11 : Global bond yields spiked to new highs and sharemarkets slumped on Friday as soaring oil prices inflamed inflation risks, sending investors scrambling to price in more policy tightening from central banks across the globe.

SYDNEY, Sept 11 : Global bond yields spiked to new highs and sharemarkets slumped on Friday as soaring oil prices inflamed inflation risks, sending investors scrambling to price in more policy tightening from central banks across the globe.Brent crude climbed to a four-month high of $109.97 a barrel on Friday