A farmer harvests sweet potatoes near the Poas Volcano, in Alajuela Province, Costa Rica, on April 26, 2017. According to local press, Costa Rica's President Luis Guillermo Solis called people on Monday to support the stores, farmers and tourism in the zones close to the Poas volcano. Costa Rica's National System of Conservation Areas announced that the Poas Volcano National Park will remain closed for "undefined" time, because the activity of the volcano has increased. (Xinhua/Kent Gilbert)
