U.S. corn futures fell nearly 2% on Tuesday, with the front contract dropping below $4 a bushel as U.S. trade tensions with China re-emerged, analysts said.
Reuters reports wheat turned lower after climbing to multi-month highs, and soybeans also slipped.
Corn tumbled after the U.S. said it will continue pursuing action on trade with China, days after Washington and Beijing announced a tentative solution to their dispute and suggested that tensions had cooled.