Dhaka, Dec. 19 -- Strict security measures have been imposed at metro rail stations across Dhaka following incidents of attacks, vandalism and arson at different establishments amid anger and protests triggered by the death of Sharif Osman bin Hadi, convenor of Inqilab Moncho.

On Friday, Dhaka Mass Transit Company Limited (DMTCL) Managing Director Faruque Ahmed said the authorities were unwilling to take any risks.

"We do not want to remain exposed to any kind of threat. Compared with the number of police and security personnel deployed previously, we have increased the presence significantly from today. In effect, very tight security has been put in place," he said.

While metro services usually operate from morning until 10:30pm, trai...