The Brazilian civil defense agency has said the death toll from deadly storms that have lashed the southern part of the country since Monday rose to 10, with 21 others still missing.

Governor Eduardo Leite announced that flooding and mudslides led the state of Rio Grande do Sul to suspend classes for Thursday, when Brazil’s President Luiz Inacio Lula da Silva was set to visit the state to assess the damage and provide federal funding.

Leite described the situation as “dramatic,” saying help was needed to rescue people trapped in inundated homes.

Some 4,400 residents have been evacuated, with 107 cities declaring a state of emergency.