Four Bangladeshi nationals, who were injured during the US-Bangla BS211 plane crash in Kathmandu, have been released from hospital.Shahreen Ahmed, Mehedi Hasan, his wife Saiyada Kamrunnahar Shwarna and Almun Nahar Annie, were released on Wednesday evening. They are free to return to Dhaka.Bangladesh Ambassador to Nepal Mashfee Binte Shams has confirmed the matter to the media, saying that the embassy has cleared their documents for leaving Nepal.