PA : A huge fire spread through more than a dozen homes Sunday outside Philadelphia , authorities said . Authorities in Coatesville , Pennsylvania , declare state of emergency . Since start of investigation , 14 suspicious fires have happened in a neighborhood near Philadelphia . US : Federal investigators are now part of a probe into the possible arsons . No residents were injured in a fire ##fight that damaged 15 homes , police say .
PA : Authorities in Coatesville , Pennsylvania , declare state of emergency . Since start of investigation , 14 suspicious fires have happened in a neighborhood near Philadelphia . US : Federal investigators are now part of a probe into the possible arsons . No residents were injured in a fire ##fight that damaged 15 homes , police say .