Two workers were injured as the under-construction gate of historical Durga Sagar Dighi (lake) collapsed at Madhabpasha union in Babuganj upazila of Barishal on Thursday. The incident occurred around 11 am and the injured workers were sent to Sher-e-Bangla Medical College and Hospital, said Kamalesh Chandra Haldar, Officer-in-Charge of Barishal airport