US soft drinks group PepsiCo said profits rose in the third quarter, but concerns have been voiced about the performance of the Frito-Lay snack food division. Pepsi reported profit of US$996m for the quarter ended 7 September, compared with $890m in the year-ago period. Sales rose 4% to $6.38bn. The results met the high end of analysts' expectations as polled by Thomson First Call.