(The Center Square) – Texas remains ground zero for targeted attacks against U.S. Immigration and Customs Enforcement officers. In the past few months,  ICE facilities in Texas have been the target of shootings, bomb threats and, now, mail with powder substances.

Federal officials are investigating two incidents in north Texas after two ICE field offices received envelopes with white powdery substances this week. 

Originally published on thecentersquare.com, part of the BLOX Digital Content Exchange.