COCOA
July London cocoa was up 73 pounds, or 5 percent, at 1,534 pounds a tonne by 1403 GMT, after surging to a session high of 1,538.
July New York cocoa also rose $92, or 4.93 percent, to $1,958 a tonne.
This extended gains from last week, with dealers pointing to technically driven short-covering as the key driver.
The market was also monitoring the Ivory Coast, where demobilized rebel fighters blocked a main road into the country's second city on Monday, demanding bonuses and jobs in the army.
"Here and now, it's all very much a technical market," said one dealer. "Whether or not [the unrest] comes to anything is difficult to say. But we've been here before, where it's started to spill over into cocoa. So it might provoke more short-covering action."
The fresh unrest comes months after a wave of soldier mutinies that eventually reached key port cities like Abidjan and San Pedro, forcing cocoa exporters to halt operations.
SUGAR
July raw sugar rose 0.05 cents, or 0.33 percent, to 15.36 cents per lb.
Prices still hovered near lows touched last month and were only slightly above the ethanol parity level, seen as 15 cents.
A further price decline could prompt a loss of 6 million tonnes of sugar, although touching the parity level is unlikely to prevent further short-term losses, Marex Spectron said in a note.
"The Funds are driving the train - we are just noisy passengers - and they have already gone short and may go shorter," the brokerage wrote.
White sugar was up a marginal $0.20, or 0.05 percent, at $441.50 a tonne, but still near a one-year low touched last week.
The global sugar market is headed for a surplus of 1.82 million tonnes in 2017/18 due to rising production and only modest consumption growth, Tropical Research Services (TRS) said in a report on Monday.
COFFEE
July arabica coffee rose 0.40 cents, or 0.29 percent, to $1.361 per lb.
July robusta was up $12, or 0.60 percent, at $2,014 a tonne.
Speculators cut their net long position in robusta by 4,047 lots to 24,264 lots as of May 02, exchange data showed on Monday.