The vehicle’s windows are reinforced, and security personnel were seen surrounding it as it entered the airport’s CIP area.

Senior BNP leaders, speaking on condition of anonymity, said Tarique Rahman is likely to use the bus to travel directly to Evercare Hospital after completing airport formalities to visit his ailing mother. On the way, he is scheduled to deliver a brief address at a gathering on the 36 July Expressway, also known as the 300 Feet Road.

Security in and around the airport has been tightened, with members of the army, police, RAB and other law enforcement agencies deployed to ensure safety during his movement.