Security was also tightened at the Khulna Press Club where the extremist organisation mailed leaflets Thursday afternoon containing similar death threats.

The leaflets referred to the murder of journalist Manik Saha who the PBCP said was liquidated for not supporting the elimination of "class enemies" as part of its ongoing struggle for "emancipation of the oppressed masses".

The PBCP has widely circulated such leaflets in the southwestern region blaming police and journalists alike for supporting brutalities against PBCP activists, some of whom were lynched while others had their eyes gouged out by angry locals.

Police and government intelligence agencies have come under fire for failing to check activities of the outlaws who are now openly active in Khulna city.

Akbar Ali, deputy commissioner (south) of Khulna Metropolitan Police, expressed his firm determination to crush the PBCP with active co-operation of the people.

He denied allegations of police brutality against PBCP cadres, adding it was the public who either lynched or mutilated some of the extremists in recent months.