At least 19 students and two teachers are dead after a shooting at Robb Elementary School in Uvalde, Texas, on Tuesday, a Texas Department of Public Safety tells ABC News.

The 18-year-old suspect, identified by law enforcement sources and Gov. Greg Abbott as Salvador Ramosa, a student at Uvalde High School, is also dead.

Ramosa also allegedly shot his grandmother before entering the school and again opening fire. The grandmother was listed in critical condition as of Tuesday night.

Authorities have recovered an AR-15-style rifle and numerous magazines, multiple law enforcement sources told ABC News.

Multiple police officers were among those injured, according to the TX DPS spokesperson.

“When parents drop their kids off at school, they have every expectation to know that they’re going to be able to pick their child up when that school day ends. And there are families who are in mourning right now,” Abbott said. “The state of Texas is in mourning with them for the reality that these parents are not going to be able to pick up their children.”

Department of Homeland Security Secretary Alejandro Mayorkas has been briefed on the situation and the agency “is actively coordinating with federal, state, and local partners,” a spokesperson said. Customs and Border Protection officials in the area also responded to the scene.

The National Counterterrorism Operations Center believes there is “no known terrorism nexus” at this time, according to a law enforcement bulletin obtained by ABC News.

Source-ABC