Striking truck drivers in Brazil went back to work Saturday, but warned that they would walk off the job again if the government doesn't follow through on its promises.

The six-day strike caused supply shortages of food and fuel in some areas of the country. Millions of dollars in export revenue were also lost.
The truckers went on strike May 1, demanding toll limits, a retirement plan, tax breaks on new trucks, a freight shipping rate scale and changes in the point system for traffic fines.
The government weakened the strike somewhat by agreeing to some demands late Wednesday. Members of two unions returned to work, although one insisted the strike was simply suspended, and the other said it continued to dispute points. The Brazilian Truckers Union did not attend the negotiations and vowed to continue the strike.
However, BTU leaders decided to end the strike Saturday after truckers in some southern and southeastern state reported being beaten by police, a charge the transportation minister denied.