The number of victims in El Paso town has increased up to 20 people, as CNN reports.
"Twenty people were killed and more than two dozen were injured in a mass shooting at an El Paso shopping center on Saturday," the message reads.
A source familiar with the investigative process said later Saturday that the FBI has opened a domestic terrorism investigation into the massacre. It will coincide with the state inquiry and Texas authorities will take the lead in the case.
FBI El Paso Special Agent in Charge Emmerson Buie said more investigative work was needed before determining whether there was a possible hate crime.
Twenty-six people were injured, according to El Paso Police Chief Greg Allen.
"The ages and genders of all these people injured and killed are numerous in the age groups," Allen said. "The situation, needless to say, is a horrific one."
The President of the U.S. commented the situation on his Twitter page.
"Today’s shooting in El Paso, Texas, was not only tragic, it was an act of cowardice. I know that I stand with everyone in this Country to condemn today’s hateful act. There are no reasons or excuses that will ever justify killing innocent people...." he wrote.