Two brothers died and two other workers fell sick after inhaling toxic gas while cutting vessel in a shipyard at Madambibir Hat in Sitakundu upazila here on Tuesday morning.
The deceased were identified as Niranjan Hawlader, 27 and Sumon Hawlader, 24, sons of Gouranga Hawlader, hailing from Jhalakati district.
Firoz Hossain Mollah, officer-in-charge of Sitakundu Police Station, said the siblings died and two others fell sick after inhaling gas in the shipyard owned by Kabir Steel in the area.