Basti, Uttar Pradesh: Rescue operation is still underway at the site where lintel of a flyover on National Highway 28 collapsed in Basti , Uttar Pradesh earlier this morning. Chief Minister Yogi Adityanath has ordered the local administration for an immediate rescue operation and to resume the traffic. Here are the visuals : According to the leading news agency ANI Lintel of a flyover on National Highway 28 collapsed in Basti earlier this morning in which 4 people injured, 2 people trapped under the debris. The flyover was under-construction on a national highway at Uttar Pradesh's Basti . All injured laborers who were working at the site are being treated at a local hospital. According to the NDTV Eyewitnesses said the iron beams supporting the flyover appear to have sunk into the ground, leading to the collapse of Flyover. On a related note it has been raining in the area for the last two weeks. The under-construction flyover on National Highway 28 is some 205 km from Uttar Pradesh capital Lucknow, news agency ANI reported. More details are awaited. Worth mention here Last week, a portion of a service road on the Agra-Lucknow Expressway caved in after heavy rain. A car with four people swallowed in debris. There were no casualties reported.