The Hague: A three-story apartment block in The Hague partially collapsed Saturday after a fire and explosion, firefighters said, with first responders searching for people under the rubble. “At this moment, the emergency services are busy rescuing and searching for people and fighting the fire,” said the city’s fire service in a statement. It was not known how many people could be missing nor what caused the explosion in the block of flats not far from the center of the city.