A driver rammed a large truck into the main gate of the Presidential Office yesterday morning, in what police have initially determined was an intentional act.

Chiehshou Police Station Chief Tsai Han-cheng (蔡漢政) said the driver has been identified as Chang Ter-cheng (張德正).

The incident — the most serious security breach to occur at the Presidential Office in years — took place at 5:05am when Chang drove a 35-tonne truck into the office, ramming through three layers of protective barriers and speeding up a flight of stairs before being stopped by a bulletproof door leading to the office’s main building, police said.