Federal safety investigators say a Philadelphia oil refinery that caught fire and exploded early June 21 is too unstable to enter for investigation.
Kristen Kulinowski, interim executive of the U.S. Chemical Safety and Hazard Investigation Board, briefed reporters June 27 on the fire and explosions that racked the Philadelphia Energy Solutions oil refinery and surrounding communities.
The company has since announced its permanent closure days after the explosion, driving up fuel prices. The plant is the biggest of five refineries in the Northeast, according to Bloomberg data.
Kulinowski said that on June 21 at 4 a.m., a release of vapor ...