Fred Ordene News Today

Miles from the blast. has anyone told either of you when you can go home? >> not yet. i mean -- >> reporter: nothing? >> nothing. >> reporter: crews spent this afternoon criss-crossing the area testing air quality to ensure the non-stop smoke didnt post any serious threats. and tonight, the cause of this blast still under investigation. officials say they planned to assess the damage by drone but until then, that evacuation order remains in place. >> morgan chesky, thank you. just in tonight, ...