KANDAHAR, May 08, 2011: ;Afghan security forces backed by foreign troops clashed with insurgents for a second day on Sunday amid a wave of bomb blasts and gun attacks which left at least 25 people dead and 46 others wounded in southern Kandahar city.Two attackers who were holed up in a building near Kandahar's intelligence headquarters have been killed, leaving just one more inside, the governor's spokesman Zalmay Ayubi said.PAJHWOK/ Siddiqullah