A gunman opened fire from a rooftop at a U.S. Immigration and Customs Enforcement facility in Dallas Wednesday, killing a detainee and critically wounding...

A sniper killed two migrants and wounded several others in a shooting at a Dallas Immigration and Customs Enforcement (ICE) facility, then shot himself dead, police say.

The surviving detainees were in critical condition at a hospital, DHS officials said. No ICE agents were injured.