The death toll in a building collapse in India's southern state of Goa rose to 15 on Sunday, as rescuers raced against the clock to save up to 20 people feared trapped beneath the debris. According to dpa, a five-storied building under construction caved in on Saturday at the seaside town of Canacona, trapping workers on the site. The police, which had earlier confirmed 11 deaths, said more bodies had since been recovered. "The death toll stands at 15, with 14 bodies recovered from the debris and one person dying at the hospital," police inspector Prashel Desai said by telephone from the scene. Twenty five injured workers were being treated at hospitals. "We cannot confirm how many people are still trapped, but according to witnesses there should be 20 more people inside," he added. Media reports said the number of those trapped could be higher. The rescue operations continued into Sunday night, with the chances of finding survivors fading by the minute and piles of concrete still needing to be removed. Marshy land around the site was also making rescue operations more difficult.