26 people were killed and dozens wounded in a gunfight at a church near the city of San Antonio, Texas (United States), state governor Greg Abbott confirmed.
It was also reported that the attacker died, however they do not know if he was killed by the police or if he committed suicide.
The event occurred this Sunday at 11:30 local time (17:30 GMT) at the First Baptist Church, in the town of Sutherland Springs, 45 kilometers from the city of San Antonio.
The testimonies collected by American media indicate that a man entered the religious center and began firing indiscriminately.
The preliminary injury figure is 25.
In the middle of the tour that he makes in Asia, the president of the United States, Donald Trump, affirmed on Twitter that he is aware of what happened.
"May God be with the people of Sutherland Springs, Texas The FBI and the police are in place, I am monitoring the situation from Japan," the president wrote.
The White House reported that Trump is constantly informed about what happened and that he already talked with Governor Abbott.
The BBC journalist in the United States Peter Bowes reported that, according to one witness, the man released at least 20 bursts after entering the church.
For his part, Sheriff Joe Tackitt confirmed to the local press that the gunman died, but without providing further details.
Sheriff Wilson Albert Gamez reported that the armed man fled the crime scene in a vehicle before he died.
It is not known if the attacker was killed by the police or if he himself ended his life.
US media, citing police sources, identify the attacker as Devin Patrick Kelley.
The Federal Bureau of Investigation (FBI, by its acronym in English) also deployed personnel in the area.
Television images show a strong police presence in the small town (home to some 400 people).
It became known that the Federal Bureau of Investigation (FBI, for its acronym in English) also deployed personnel in the area.
Several ambulances and fire trucks are at the scene of the incident.
There are press reports that indicate that some of the injured have already been transported by helicopter from Sutherland Springs to nearby hospitals.
Helicopters began to move the wounded.
The attack comes just over a month after another similar incident that shook the United States in which a man killed more than 50 people shooting from a hotel in Las Vegas.
The reasons that led the attacker to perpetrate the attack are unknown.
The pastor's daughter among the victims
The pastor of the First Baptist Church, Frank Pomeroy, told ABC that his 14-year-old daughter, Annabelle, was one of the fatal victims of the shooting.
Pomeroy, who was out of town in Oklahoma at the time, described her as "a very beautiful and special girl" in a telephone call to television.