WILLIAMSBURG - As investigators look into how a building collapsed on Conselyea Street Monday afternoon, construction workers are also there clearing away the rubble.

The building was fenced off Tuesday afternoon as construction workers cleared away debris brick by brick to make sure no one else got hurt.

According to the Department of Buildings, the workers were adding a fourth floor when something supporting the structure was compromised, bringing the building to the ground.

Four people were injured in the collapse.