The fourteenth suspicious fire in a month 's time hit a small community near Philadelphia before dawn Sunday . NEW : Authorities in Pennsylvania , Pennsylvania , declare state of emergency . Since start of year , 15 suspicious fires have happened in a town near Pennsylvania . WPVI : Federal investigators are now part of a probe into the possible arsons . No residents were injured in a fire start of year that damaged 14 homes , authorities said .
NEW : Authorities in Pennsylvania , Pennsylvania , declare state of emergency . Since start of year , 15 suspicious fires have happened in a town near Pennsylvania . WPVI : Federal investigators are now part of a probe into the possible arsons . No residents were injured in a fire start of year that damaged 14 homes , authorities said .