Riots erupted in Sudan on Monday during a senior UN humanitarian official's visit to a camp for displaced people in Darfur.

A Sudanese interpreter was killed by the angry demonstrators.

Tensions are increasing in the camps as refugees learn details of the peace deal signed on Friday between the Sudanese government and the main rebel groups in Darfur. They fear the deal doesn't do enough to protect them from government-backed militia, the Janjaweed.

Jan Egeland, the UN's undersecretary-general for humanitarian affairs, and his entourage cut short their visit to Kalma camp in southern Darfur when a group of protesters attacked a translator with the aid group Oxfam.

That official was hustled into a van and driven away. But half an hour later, the crowd later attacked African peacekeepers and killed one of their translators.

The protesters are demanding the UN send peacekeepers into the region to protect them. The camp is home to about 90,000 refugees.

Need all-front co-operation

At the United Nations, U.S. Ambassador John Bolton said the world organization wants "the deployment of a UN peacekeeping force as soon as possible, but until you can get the planning done you can't speed that date up."

British Ambassador Emyr Jones Parry said little will be accomplished in Darfur without the "closest co-operation with the African Union, but especially with the government of Sudan."

U.S. President George W. Bush says he's increasing U.S. aid to Sudan now that the peace deal has been signed.

"We are still far away from our ultimate goal, which is the return of millions of displaced people to their homes so they can have a life without fear," Bush said. "But we can now see a way forward."

Bush says he supports the peace agreement, but the situation in Darfur remains dire, callingthe systematic killings there an act of genocide.

Bush wants Sudan food aid increased

He's also calling on other nations with humanitarian expertise to do more.

"Other major donors have not come through," said Bush. "As a result, the World Food Program was forced to cut rations by half. So I propose an emergency supplementary [aid package] before Congress to increase food aid to Sudan by another $225 million."

In Ottawa, Defence Minister Gordon O'Connor poured cold water on suggestions Canada could send a sizable troop deployment to Darfur.

Appearing before a Senate committee on Monday, O'Connor said the military won't be able to take on any new missions until it finishes its expansion plans, which call for the addition of 13,000 personnel over the next five years.

O'Connor says training all those new people will be a major draw on the military's resources.

"We can maintain Afghanistan as it is into the future basically forever, but we would be greatly challenged for a substantial commitment elsewhere," he said.