Rapid Action Battalion yesterday deployed two helicopters to look-over Dhaka and its outskirts as part of an intensified security measures ahead of the Victory Day today.
Rab officials said they had started hovering since 12pm yesterday.
Colonel Ziaul Ahsan, additional director general of Rab, said equipped with sophisticated firearms and high-powered binoculars, each helicopter patrol team was consisted of six members. The patrol teams would mainly keep their eyes on different key point infrastructures and strategic places, he added.
Sources said hovering by helicopters had been prompted as the police forces had become exhausted in face of continuously deteriorating law and order situation and unstable political situation in the country.
They said over 4,000 platoons of the BGB were deployed in different times in last few months to assist the forces of police department and Rab to deal with Jamaat-Shibir and 18-party alliance activists.
However, the forces were not being able to stop and control various subversive activities by Jamaat-Shibir and opposition men, sources said.