( CNN ) -- At least 130 people have died and dozens are missing after heavy rains triggered flooding and mudslides that buried communities Sunday and left a swath of destruction in El Salvador , officials said Monday . The death toll was `` preliminary , '' said Raul Murillo , subdirector of the Department of Civil Protection in San Salvador . Another 13,680 people were staying in emergency shelters , he said . Laura Mata , communications manager for World Vision in El Salvador , said 40 percent of the dead were children . About 60 people were still missing Monday afternoon , said Carlos Alvarado , communications director for the government 's rescue efforts . The most affected departments are San Salvador , La Paz , Cuscatlan , Usulatan and San Vicente . He described the latter as the most heavily affected . The government 's Web site said there were 108 landslides , 209 destroyed buildings and another 1,835 damaged ones . In all , 18 bridges were affected , it said . Private , government and U.N. donations have all been promised , but the needs exceeded supplies , with high demand for food , construction materials , plastic sheeting , medications and -- with a cold front expected to sweep into the area Tuesday -- clothes , Alvarado said . Fumigation efforts were slated to begin Tuesday to reduce the chances of disease . `` There 's a lot of work to do , '' he said . Guatemala , Spain and other countries were helping , Mata said . At the 139-bed Hospital Santa Gertrudis in San Vicente , 33 patients sought help overnight in the emergency room , mostly for trauma , broken bones and abrasions , said Dr. Ana Luisa Velazquez , the hospital director . Patients had to be removed from the pediatric unit and women 's surgery unit , both of which were built on low-lying ground and were inundated , she said . Though the hospital had fresh water from its own well , fresh water was in scarce supply in San Vicente , she said . Mata visited the town Sunday . `` All three access roads were completely wiped off , '' she told CNN 's Jonathan Mann . `` You could only get there by one lane . Everywhere -- mud , huge rocks . '' Electricity was largely out , she said . In addition to losing their homes , many people have lost their crops , she said . President Mauricio Funes declared a national emergency and described the loss as incalculable . About 7,000 people lost homes in the disaster Sunday , officials said . Authorities said the death toll is expected to rise as rescuers scramble to reach regions where roads have been washed away . In some of the hardest-hit areas , such as the capital , San Salvador , roads are completely gone , Mata said . `` You would never imagine there were road systems there . ... Huge rocks , mud , water everywhere , '' she said . `` People have lost complete families . '' Landslides on the side of a volcano swallowed up a village in Verapaz , Mata said . iReport : Neighborhood slammed with mud and debris . Residents in affected areas climbed over boulders as rescue crews waded through muddy water , some carrying young children . Homes , trees and electricity poles , and mountains of mud , covered streets . The heavy rains in the impoverished Central American nation were unrelated to Hurricane Ida , said Saul Ezgardo de la Reyes , a government meteorologist in the Center of Prognostics . `` The rains in Salvador are due to the low pressure system , '' he said , adding that it was dissipating Monday . `` We 're waiting for the arrival of fresh air and higher pressure . '' On Sunday , 355 millimeters ( 14 inches ) of rain fell near the Saint Vincent Volcano , southeast of the capital , and 196 mm ( 7.7 inches ) fell on the capital itself , he said . Sunday 's inundations were unprecedented , he said . Hurricane Mitch dropped similar quantities in 1998 , but those values were tallied in three or four days , he said . `` This was in practically four hours . '' A low-pressure system out of the Pacific triggered the disaster , said Robbie Berg of the National Hurricane Center in Miami , Florida .
40 percent of dead are children , aid group spokeswoman says . Aid is promised , but more is needed as cold front is due Monday . dozens people killed , At least 130 missing after heavy rains cause flooding , mudslides . Mudslides unrelated to Hurricane Ida , officials say .