A woman with fever, cough and sore throat died at Sadagarpara in Nilphamari municipality on Monday afternoon.
The deceased was identified as Ayesha Begum, 52, wife late Jasim Uddin of the area.
Neighbour Masud said the woman had been suffering from cough, fever and sore throat for the last several days. She died at her residence around 5:30 pm.
Later, she was buried at the family graveyard but no sample was collected for coronavirus test, he added.
Mominur Rahmam, officer-in-charge of Sadar Police Station, said they were informed about the matter and a police team visited the spot.