There was absolutely no warning before a deadly tsunami struck Indonesia on Saturday, which ended up killing at least 168 people and injuring at least 745, Sutopo Purwo Nugroho, head of public relations at Indonesia’s National Disaster Mitigation Agency, announced on television.

According to the country’s meteorological, climatological and geological agency, the tsunami is likely to have been triggered by a combination of underwater landslides caused by volcanic eruption. Nugroho said that the country doesn’t have the proper equipment to alert that a tsunami threat is coming.

ThIndonesia has unfortunately been hit by a series of natural disasters in recent weeks, including a strong earthquake that hit the island of Sulawesi only a couple months ago on September 28. In the towns of Baleroa and Petobo, rivers of soil swept away entire neighborhoods the aftermath of the magnitude-7.5 earthquake and ensuing tsunami.

The death toll from the quake is nearly 2,000.e tsunami has destroyed 558 houses and heavily damaged nine hotels, 60 restaurants and 350 boats.