Emergency teams with rescue dogs were searching Sunday for any remaining survivors of powerful twin earthquakes that struck Venezuela, where the death toll has surpassed 1,450 and nearly 200 buildings have completely collapsed.

A man and his teen son were found alive under the rubble Sunday by French and American rescue teams in Caraballeda, a town about 40 kilometers north of Caracas,?journalists saw.

The rescue offered a glimmer of hope in an ongoing tragedy that has shaken a country already mired in an economic crisis, but tens of thousands of people were still reported missing and the critical 72-hour window for rescuing trapped victims following a natural disaster has now passed.