Three people were killed and 15 others sustained injuries after being struck by lightning while working on a paddy field in the Kalagaon area of the district's Tahirpur upazila on Thursday.
The identities of the deceased could not be known immediately.
A group of farm workers was working on the paddy field when they were struck by lightning around 11am, said Abdul Latif Tarafdar, officer-in-charge of Tahidpur Police Station.
While three of them died on the spot, the injured were admitted to a local hospital.
Lightning strike in Bangladesh
Lightning strike has turned into one of the deadliest natural disasters in Bangladesh, claiming over 200 lives every year.
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According to the Ministry of Disaster Management and Relief, 2,164 people died in lightning strikes in the country from 2011 to 2020. At least 216 people die every year on average in lightning strikes, more than by floods, cyclones and other calamities.
More than 70 percent of the total lightning strikes occur between April and June, say experts.