Police are investigating an explosion that damaged the Maruha Nichiro-owned Westward Seafoods plant in Unalaska Monday night, according to KTOO Public Media.

No one was injured in the blast, but the Unalaska Department of Public Safety estimates the building sustained more than $100,000 (€89,759) in damage.

Thirteen responders arrived at Westward about 6:45 p.m. local time Monday to find smoke pouring out of the plant.

Westward’s Plant Manager Dan Le said a seawater line broke around 6:30 p.m. on Monday, which could have ignited fishmeal dust and caused the explosion.

However,