TANGERANG, Indonesia (AP) — An explosion and inferno at a fireworks factory near the Indonesian capital on Thursday killed at least 47 people, most of them female workers who were apparently locked inside, and injured dozens.

Witnesses said a huge explosion was heard from the factory at about 10 a.m. and then smaller blasts echoed across the neighborhood as orange flames jumped from the building and columns of black smoke billowed from it.

The death toll could rise as many of those who escaped suffered extensive burns, said Nico Afinta, general crimes director at Jakarta police. He said bodies...