US crude futures fell more than $1 on Tuesday as investors were uncertain whether the US Federal Reserve would signal a change in its easy monetary policy after a two-day meeting of policymakers wraps up on Wednesday.

Also, the investor sentiment was dampened after Saudi Aramco's chief executive said the kingdom was not comfortable with current oil prices.

NYMEX crude for June delivery dipped by $1.08 a barrel to $111.2. Brent shed 66 cents to $123 a barrel.

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