Dhaka, Nov. 11 -- The Dhaka Metropolitan Police (DMP) has stepped up security across the capital, strengthening checkpoints, intensifying patrols and increasing surveillance following several crude bomb explosions and arson attacks on buses in different parts of the city.

The measures had been taken to ensure public safety, prevent criminal activities and protect vehicles travelling on city roads, DMP Deputy Commissioner (Media) Akhtar Hossain said on Wednesday.

He said police patrols and surveillance had been intensified at key entry points, major roads and crime-prone areas across the capital.

As part of the coordinated operation involving different police stations and units of the DMP, suspected individuals and vehicles were being s...