At least three people were injured yesterday when a man set off a bomb in a fountain at a public square in Chengdu, Sichuan province. The blast happened in Tianfu Square during the lunch hour, Xinhua reported. A man was arrested 10 minutes after the blast. Police also found evidence of explosives and parts of batteries at the scene, along with pieces of newspapers and clothes the suspect allegedly left. 'Soil and small pieces of paper were scattered all over the area about 10 metres around the site,' said a report on Xinhua's Web site. Chengdu police confirmed the explosion but declined to give details. 'Three people were injured but we cannot make their identities public,' an officer at the Chengdu Public Security Bureau said. He also confirmed a man had been taken into custody. Xinhua said two of the victims were women including an elderly woman who lived in Chengdu. They were being treated at Huaxi Hospital. No details were given on the third victim. There were messages posted on Internet Web sites claiming people had been killed in the explosion but these reports could not be confirmed independently. Violent crimes involving the use of explosives are on the rise in China. However, most cases happen in villages where cheap explosives are readily available. In March last year, unemployed worker Jin Ruchao set off four explosions in Shijiazhuang, Hebei province, killing at least 108 people.