VIDEO: Watch: Landslide swallows highway in Brazil

Firefighters in the Brazilian state of Parana worked tirelessly on Wednesday to find around 30 people believed to have been engulfed in a landslide that hit a coastal highway.

Two people have been found dead and six have been rescued alive since Monday’s landslide, state officials said in a statement. They warned that the number of casualties could differ from their estimate because it was impossible to say how many passengers were traveling in the 16 cars and trucks caught up in the natural disaster.

The landslide hit the BR-376 highway in the city of Guaratuba following intense and continuous rains in the area. A search and rescue team of 54 firefighters and specialists uses tow trucks, search dogs and drones equipped with thermal cameras to help detect any signs of life