Bangladesh Health Reporters' Forum has demanded the arrest of the attackers of Prothom Alo special correspondent within 48 hours.
The demand came from a human chain formed in the National Press Club in the capital on Wednesday.
The forum members and other organisation's leaders formed the human chain to press home their 5-point demand.
On Tuesday, Prothom Alo Correspondent Shishi Morol went to ZA Sikder Women's Medical College Hospital to investigate an allegation against Dr Shafiul Azam.
But Morol came under attack by Shafiul and his associates. They confined him for two hours and half and beat him severely.
Shafiul is an assistant professor at Chittagong Medical College Hospital, but he had been working fulltime at ZA Sikder Women's Medical College Hospital without taking leave from CMCH.
