Residents of the Philippines are reeling from yet another typhoon that left at least four people dead as it barreled through the northern part of the country Tuesday with wind gusts of up to 230 km per hour and heavy rains.

Before heading west over the South China Sea, Yutu triggered landslides that blocked highways on the main island of Luzon. Reports say roads blocked by collapsed earth engulfed a local government building under construction in the Mountain province, trapping more than 20 people.

Among those trapped were public highway contractors, security guards and others who sought shelter, according to the civil defense leader in the Cordilleras, a landlocked area on Luzon. Yutu is the 18th typhoon to strike the Philippines this year.

Thousands of people were evacuated before the arrival of the storm.