A boy, roughly 2 to 3 years old, ran into a closed area Wednesday at the Kilauea Overlook, coming within a foot from the edge of Kaluapele, the summit caldera, before his mother managed to pull him to safety.

Kilauea, one of the world's most active volcanoes, began erupting around 2:30 a.m. local time, according to the U.S. Geological Survey.