At least 20 people were injured in sporadic clashes between activists of ruling Awami League and the BNP during the observance of the Martyrs Day and the International Mother Language Day in Lakshmipur on Monday.
Of the injured, 13 were admitted to Raipur Upazila Health Complex.
The two-hour chase and counter-chase started around 9am in the Upazila Health Complex area.
According to local people, the BNP supporters chanted obscene slogans while returning after placing wreaths at a local Shaheed Minar.
The clash ensued when AL activists protested against the slogans.
Abu Sayeed Jutan, general secretary of Raipur unit AL, said that the BNP men had chanted obscene slogans against the prime minister. When the Awami League leaders and activists obstructed them, they were attacked.
At least 30 leaders and activists of the Awami League were injured in the incident, he claimed.
He also demanded the arrest of those involved in the attack.
Shipon Barua, officer-in-charge (OC) of Raipur police, said that law enforcers brought the situation under control.
