Members of Bangladesh Chhatra League (BCL) physically assaulted BNP MP Golam Mohammad Siraj and some leaders and activists of the party in Sadar upazila of Bogura on Sunday.
Witnesses said a group of BCL men chased the BNP MP while returning after paying tributes to the language martyrs at Shaheed Khokon Park Shaheed Minar around 10am, marking the International Mother Language Day.
They physically assaulted Siraj and four BNP leaders and activists.
The BNP MP along with his supporters took shelter in the police camp near the park.
Later, police brought the situation under control.