PORT WENTWORTH, Ga. (AP) - Authorities in Savannah say dozens of people were injured in an explosion and fire at a sugar refinery that was felt by residents throughout the suburb of Port Wentworth. No deaths are reported immediately at the plant owned by Imperial Sugar and known as a longtime Savannah landmark as the Dixie Crystals plant. But a witness describes widespread damage. Sergeant Mike Wilson of the Savannah-Chatham County police says there are an unconfirmed number of injuries, but possible from 50 to 100. Ther is not immediate word of what caused the explosion about 7 p.m. Nakishya...