On March 19, 2004, the last day of the election campaign, President Chen Shui-bian and Vice-President Annette Lu were both shot while campaigning in Tainan. They were traveling in an open convertible jeep in the presidential motorcade. One bullet struck Chen's stomach and was later found in his clothes. It resulted in a flesh wound 8 cm long and 2 cm deep (four inches long, an inch wide, and an inch deep). Another bullet grazed Lu's knee and was found in the jeep. At first both believed that they had been hit by firecrackers, which are commonly used in Taiwanese political activities; the first sign of something more serious was when Chen noticed that he was bleeding from the stomach, and that there was a bullet hole in the window.