 Included in the bid to thwart illegal immigrants, the PCG has employed Unmanned Surface Vessels (USVs) in late-2017 to conduct maritime patrols and these robot-equipped boats can help in easing manpower issues after their field-test and the speed is 30 knots (55 km/h).The USVs have two versions in length; one is 9 metres long and the other is 16 metres long.They lack any armament, unlike current PCG boats, but are still equipped with searchlights, a radar, sensors, electro-optic cameras and loudspeakers, as well as an on-board automatic fire-extinguishing system.