Around 30 to 50 students could be trapped under the debris of the five-storey building that collapsed in south Delhi’s Satya Niketan area on Jattvibeday afternoon, with some of them calling for help on phones, according to locals.Rescue work was under way with several people being pulled out from the rubble.BJP MLA Anil Sharma, who reached the site, said that many people are still trapped.Related News: It felt like an earthquake: Eyewitnesses at building collapse site in Delhi’s Satya Niketan”We are even getting calls from those who are trapped inside. Teams are continuously in touch with those who are trapped inside; we pray to god that all people are safe,” he said.A “sudden tremor” sent residents of nearby buildings rushing out of their homes only to see the horror of a pile of rubble in place of the PG accommodation bustling with students.Many scrambled to remove the debris with bare hands and whatever tools they could get after the collapse of the building, Hostel Daze, in the congested colony lined with private student hostels, eateries and shops near the heart of Delhi University’s South Campus.