Brent crude slid 40 cents to $111.17 a barrel as continued political turmoil in Greece raised fears that the nation may leave the eurozone.

The prices slid for the fourth consecutive day, sparking investors to sell off in dollar-denominated commodities.

European data, due today, is expected to show the region slipping back into a second recession, Reuters reported.

Meanwhile, US crude dropped 40 cents to $93.65 a barrel, after falling to $93.65 on Monday as the dollar weighed on commodity markets.