CNN quoted information from US law enforcement officials saying that the shooting at former President Donald Trump's campaign rally in Butler, Pennsylvania on the evening of July 13 is being investigated as an assassination attempt.
Mr. Donald Trump was lucky to survive a series of explosions at a campaign rally, according to Republican witnesses.
Pennsylvania Republican Senate candidate David McCormick told Fox News he was in the front row when seven to eight shots rang out.
“The crowd almost fell to the ground,” McCormick said. The Secret Service immediately arrived and quickly protected the former president."
Mr McCormick said it was unclear which direction the shots came from, but the person standing behind him in the stands was "definitely injured".
"There was a lot of blood and the police came and took that person out of the stands so they could be taken care of," Mr. McCormick said.
McCormick did not know if others were injured.
When asked if former President Donald Trump was lucky to survive, Mr. McCormick replied: "I think so."
Fox News cited law enforcement sources as saying that the shooting suspect at Donald Trump's campaign rally has died. Two other injured people were taken to a Pittsburgh hospital.
Gunfire seemed to break out right after Donald Trump began speaking at the rally.
Meanwhile, CNN quoted Secret Service sources as saying that the shooter was killed by Secret Service agents. One attendee also died in the incident.
Former US President George W. Bush issued a statement saying he and his wife were "grateful" that former President Donald Trump was safe after reports of a shooting.
“Laura and I are grateful that former President Trump is safe after the cowardly attack on his life. And we commend Secret Service agents for their quick response," the statement said.