Rescuers are intensifying their searches in highland areas of central Costa Rica after a powerful earthquake that left at least 19 people dead.
The 6.1-magnitude quake on Thursday at Poas Volcano National Park north of the capital, San Jose, caused landslides to block roads and damage buildings.
Red Cross officials now say 19 people have died, with others still believed to buried by landslides.
At least 40 people are still missing, and hundreds have sought refuge.
Temporary shelters have been set up in the region for those affected by the quake.
Officials have warned that the number of dead and injured is likely to rise as rescuers reach remote areas.
The quake, reported to be on of the strongest to hit Costa Rica in 150 years, was felt across the country and knocked down homes in San Jose.
Rescuers at the worst-affected areas, in the mountainous central highlands, ferried tourists away from shattered restaurants and looked for local residents lost in the rubble.
The National Emergency Board declared a red alert in the metropolitan area of the central valley where 2.5 million of the country's population of four million live that includes San Jose, Cartago, Alajuela and Heredia.
The strongest quake to shake the country in the past 150 years was followed by more than 1,500 aftershocks and collapsed homes in and around the capital.
Officials reported the leading Cariblanco hydroelectric plant will be out of operation for about a year, after its generators were buried by tonnes of mud from flooding and landslides unleashed by the quake.
Costa Rica's Central American neighbours, as well as Colombia, the United States and China, have offered aid to victims.
