Cocoa declined in London on concerns that a strike in Ivory Coast, the world's largest cocoa grower, won't affect exports of the beans used to make chocolate.

Cocoa for May delivery dropped by 0.6 percent, or 9 pounds, to 1,423 pounds ($2,878) a metric ton on London's Liffe exchange.

Cocoa increased by 33 percent last year after investors bought commodities to hedge inflation and the dollar declined.

There is a strike at warehouses in Abidjan, Ivory Coast, which has entered its third day.

Ivory Coast contributes 41 percent share to the global cocoa output, which was forecasted to fall short of demand by 32,000 tons this year.

Robusta coffee for May delivery increased by 3.4 percent, or $87, to $2,647 a ton.

White or refined sugar for May delivery, dropped by $3.60 to $352.60.