Sherpur Bus Owners' Association went on an indefinite strike in the district yesterday morning, demanding punitive action against the extortionists.

Saiful Islam Swapan, general secretary of the association, alleged that Golam Mostafa Mastu, general secretary of Sherpur Road Transport Workers' Union, along with his associates is involved in collecting illegal tolls from the bus owners.

As the local administration failed to bring an end to extortion, they called the strike as per advice of Dhaka Division (North) Bus Owners' Oikya Parishad, he said.

He also threatened to enforce an indefinite transport strike in greater Mymensingh if the demand was not met immediately.

Golam Mostafa Mastu termed Sherpur Bus Owners' Association president Sanowar Hossain Sanu and its general secretary Saiful Islam Swapan extortionists.

Superintendent of Police Mehedul Karim said they will sit with the bus owners and workers to resolve the issue.